Caumasee, also called Lag la Cauma, is a turquoise mountain lake in the forest near Flims in Graubünden, Switzerland. The official Flims Laax tourism site calls it the “jewel of Flims” and explains that its Romansh name refers to a place of midday rest. It is popular for swimming, walking, pedalos, stand-up paddleboarding, relaxing by the water, and combining a lake visit with a hike through the Flims forest.
Quick Answer
Caumasee is easiest to visit from Flims Waldhaus. Paid parking is about a 10-minute walk from the free Caumasee lift, while the Flims Waldhaus Caumasee bus stop is about 15 minutes from the lift. In summer 2026, the public bathing area normally opens from 8:30 a.m. to 5:00 p.m., weather permitting.
Key Takeaways
- During the 2026 summer season, Bogn La Cauma normally operates daily from 8:30 a.m. to 5:00 p.m., although weather can cause short-notice changes.
- Standard 2026 visitor admission is CHF 18 for adults and CHF 9 for visitors up to age 16. Different rates apply to Flims, Laax and Falera locals and Guestcard holders.
- The Caumasee lift is free and saves roughly 80 metres of descent, but its schedule follows restaurant operations and temporary closures can occur.
- Official activities include swimming, pedalos, stand-up paddleboarding, beach volleyball, walking, sunbathing, and a children’s play area.
- Fires, barbecues, and drones are prohibited throughout the Caumasee area, and children should always be closely supervised around the water.
How to Get to Caumasee
Caumasee is near Flims Waldhaus, but you cannot simply drive to the lakeshore. Most visitors complete the final part of the trip on foot, by bike, or with the free Caumasee lift.
By Public Transport
If you are coming from another part of Switzerland, national rail connections take you to Chur. From Chur, PostBus services connect with Flims Laax. You can check current connections and buy tickets through SBB.
For the lake, use the stop Flims Waldhaus Caumasee. According to Flims Laax, it takes about 15 minutes to walk from the bus stop to the Caumasee lift. If you continue on the forest path instead of taking the lift, allow roughly another 15 minutes to reach the lake.
By Car
Paid parking is available in Flims Waldhaus. From the Caumasee parking area, the walk to the lift takes about 10 minutes. Parking can become limited during busy periods, so the official tourism site recommends using the Stenna underground car park or the event-hall parking in Flims Dorf when the Flims Waldhaus spaces are full.
From those overflow parking areas, allow additional walking time to reach the Caumasee approach.
Pro Tip: On popular summer days, public transport can remove the stress of finding a parking space. If you drive, arriving earlier also gives you more time to enjoy the lake before the busiest part of the day.
Caumasee Lift and Accessibility
The free Caumasee lift covers roughly 80 vertical metres between the upper path and the lake. The approach to the lift is described by the official tourism organization as suitable for wheelchairs and strollers, and the forest route can also be used without the lift.
2026 Note: The official Flims Laax page currently warns that the Caumasee lift will be temporarily out of service from September 2 for renovation work. Check the current Caumasee information before relying on the lift for an upcoming visit.
Exploring the Natural Beauty of Caumasee
Caumasee is known for its striking turquoise-green water, forested shoreline, and wooded island. Flims Laax reports typical summer water temperatures of roughly 17 to 24°C, which helps explain why swimming is such a popular warm-weather activity.
The lake also has an interesting geological setting. Caumasee lies within terrain shaped by deposits from the prehistoric Flims rockslide. Geological research describes the Flims event as the largest known catastrophic Alpine rock-slope failure. You can read more about the wider geological setting in this Earth Surface Dynamics study.
You may come across a story online claiming that a giant created Caumasee by scooping a hollow from the earth. I could not verify that legend through authoritative local sources, so it is better treated as folklore rather than an explanation of how the lake formed. The documented Flims rockslide provides the stronger geological context.
Walking around the area lets you see the lake from several angles. Morning light can make the setting feel quiet and subdued, while bright summer sun brings out the turquoise color. Weather changes quickly in the Alps, so the appearance of the lake can vary considerably from one visit to another.
For a longer outing, you can combine Caumasee with Conn and the Il Spir viewing platform above the Rhine Gorge. Graubünden Tourism publishes several routes through this landscape, including a Caumasee and Conn circular hike.
Activities to Enjoy at Caumasee
| Activity | What to Know |
| Swimming | Swimming is one of the lake’s main summer attractions. Use the supervised bathing area during official opening hours when possible. |
| Pedalos | Pedal boats are listed as an official Caumasee activity and provide an easy way to see more of the lake. |
| Stand-up Paddleboarding | SUP is officially offered during the active lake season and is popular on calmer days. |
| Picnicking | You can bring food for a simple picnic, but pack out your waste. Do not light a grill or fire anywhere in the Caumasee area. |
| Walking and Hiking | Forest paths connect the lake with Flims Waldhaus, Conn, Il Spir, Crestasee, and longer hiking routes. |
| Beach Volleyball | A beach-volleyball area is part of the current recreation facilities. |
| Kayaking / Snorkeling | These were mentioned in earlier visitor descriptions, but they are not currently listed among the official on-site Caumasee activities. Do not assume kayak rentals or dedicated snorkeling facilities will be available. |
Families also have access to a sandbox and play area. If you prefer a relaxing visit, it is perfectly reasonable to spend most of your time walking, swimming, having a cold picnic, or simply enjoying the lakeside setting.
Warning: Do not assume the lake is shallow or automatically safe for children. Watch children closely whenever they are near the water. Flims Laax specifically states that no lifeguard service is provided outside the public bathing area’s official opening hours.
2026 Caumasee Admission, Hours, and Rules
For summer 2026, the public bathing facility Bogn La Cauma is normally open daily from 8:30 a.m. to 5:00 p.m. Weather can cause short-notice changes, so check the official page before traveling on an uncertain day.
The listed 2026 single-entry prices are:
- Standard visitors: CHF 18 for adults and CHF 9 for visitors up to age 16.
- Flims, Laax and Falera locals / Guestcard holders: CHF 9 for adults, with children up to age 16 listed as free.
Tickets can be purchased through the LAAX app or official online ticket shop. Prices and operating arrangements can change between seasons, so use the official Caumasee page as the final source before your visit.
Important Lake Rules
- No fires or barbecues: There is a fire and barbecue ban throughout the Caumasee area. A separate barbecue area is available above the forest playground in Flims.
- No drones: Multicopters, drones, and other flying models are prohibited throughout the Caumasee area.
- Dogs: Dogs are not allowed inside the bathing area. They may accompany you to the restaurant on a lead, and separate rules apply on the opposite shore outside the bathing area.
- Music: Loud or disturbing amplified music should be avoided.
- Foils: Foils and foil-surfing boards are not permitted on Caumasee.
Where to Stay and Eat Near Caumasee
Flims is the most convenient base for visiting Caumasee because it places you close to the lake approach, public transport, restaurants, and the surrounding hiking network. Flims Waldhaus is particularly practical if easy access to the lake is your priority, while Flims Dorf and nearby Laax provide additional accommodation choices.
At the lake itself, the current food setup includes several options. Ustria La Cauma is a serviced lakeside restaurant that Flims Laax lists as operating year-round, with evening reservations required. Its entrance is outside the paid Bogn La Cauma bathing area, so you do not need a bathing ticket simply to visit Ustria La Cauma.
During the summer season, Terrassa La Cauma provides self-service food by the lake. Guests who are not entering Bogn La Cauma pay CHF 5 for Terrassa access, with that amount functioning as a CHF 5 consumption voucher when used within 90 minutes. Kiosc La Cauma also operates as a simpler summer food option.
If you prefer to bring some of your own picnic food, pack items that travel well and remember to carry all waste away with you. For an extra homemade option, you can also see this article on homemade cottage cheese.
Tips for Visiting Caumasee
- Check current conditions: Weather can change quickly in the mountains, and lake-bath hours can be adjusted when conditions are uncertain.
- Wear comfortable footwear: Even though the main approach is relatively easy, you will still spend time walking on forest paths.
- Dress in layers: Temperatures can feel different in the shaded forest, beside the water, and in direct sun.
- Bring sun protection: Sunscreen, sunglasses, and a hat are useful on bright summer days.
- Pack swim gear if appropriate: Bring a swimsuit and towel if you plan to use the bathing facilities.
- Carry drinking water: This is particularly important if your visit includes a longer hike toward Conn, Il Spir, or Crestasee.
- Keep children close: A play area makes Caumasee family-friendly, but water supervision remains the responsibility of accompanying adults.
- Respect the fire ban: A cold picnic is fine, but do not use a grill or open flame within the Caumasee area.
The easiest Caumasee visits are the ones planned around three things: current bathing hours, the final walk or lift to the lake, and the day’s weather.
Caumasee in Different Seasons
Spring
Spring can be peaceful, but conditions vary with snowmelt, temperature, and weather. The public summer bathing operation may not yet be open, so check current facility information rather than assuming summer services are available.
Summer
Summer is the main swimming season. Flims Laax reports water temperatures of roughly 17 to 24°C, and this is when swimming, pedalos, SUP, sunbathing, volleyball, and the seasonal food facilities become most relevant. It is also the busiest period, especially during good weather.
Autumn
Autumn brings changing forest colors and can be excellent for walking and photography. Bathing operations and lift schedules become more variable as the main summer season ends, so check current opening information before basing your plans on summer services.
Winter
Winter gives the forest and lake a completely different atmosphere. Snow may cover the surrounding landscape, but do not assume the whole lake will always be frozen. The public bathing facility is seasonal, while Ustria La Cauma is listed as a year-round restaurant. Walking conditions depend on current snow, ice, and trail conditions.
Preserving the Beauty of Caumasee
Caumasee sits within a sensitive forest landscape, so small choices make a real difference. Flims Laax asks visitors throughout the region to use signposted paths, take rubbish away, keep dogs under control where required, use only official fireplaces, and avoid camping outside designated campsites.
At Caumasee itself, follow the stricter lake rules as well. Do not light fires, launch drones, or disturb other visitors with loud music. Avoid damaging vegetation and give wildlife space rather than approaching animals for photographs.
Caumasee is more than a quick photo stop. Its turquoise water, Flims-forest setting, swimming facilities, family recreation, and nearby hiking routes make it possible to build anything from a relaxed half-day visit to a longer outdoor excursion. Planning around current access, weather, admission, and lake rules will make the experience much smoother.
Frequently Asked Questions
What is Caumasee?
Caumasee, also known as Lag la Cauma, is a turquoise mountain lake near Flims in Graubünden, Switzerland. It lies in the Flims forest and is known for swimming, pedalos, stand-up paddleboarding, walking, and its wooded island.
How do I get to Caumasee?
Take public transport to the Flims Waldhaus Caumasee stop or use paid parking in Flims Waldhaus. From the bus stop, allow about 15 minutes to reach the free Caumasee lift. From the main parking area, the lift is about a 10-minute walk away. You can also continue to the lake through the forest without using the lift.
How much does Caumasee cost in 2026?
For the 2026 summer bathing season, standard visitor admission is CHF 18 for adults and CHF 9 for visitors up to age 16. Flims, Laax and Falera locals and Guestcard holders receive different rates. Check the official Caumasee page before visiting because prices can change.
What activities are available at Caumasee?
Officially listed activities include swimming, pedalos, stand-up paddleboarding, beach volleyball, walking, sunbathing, and children’s play facilities. Kayak rental and dedicated snorkeling facilities are not currently listed among the official on-site activities.
Are there facilities at Caumasee?
Yes. The current official information confirms changing rooms, restaurant and seasonal food options, pedalos, SUP, beach volleyball, a sandbox, and a children’s play area. Do not rely on showers unless you confirm their availability for your visit, because the current official visitor page does not clearly list them.
Is Caumasee suitable for families?
Yes. Families can use the play area, sandbox, bathing facilities, and stroller-friendly approach. However, do not assume the water is shallow or inherently safe for children. Close adult supervision is essential, and no lifeguard service is provided outside official bathing hours.
Can I barbecue, fly a drone, or bring a dog to Caumasee?
Fires and barbecues are prohibited throughout the Caumasee area, and drones are also prohibited. Dogs are not allowed inside the public bathing area, although leashed dogs may accompany visitors to the restaurant and different access rules apply outside the bathing area.
How do I reach Caumasee from Zurich Airport?
A simple public-transport route is to take the train from Zurich Airport toward Chur and then continue by PostBus to Flims. Exact journey times vary by connection, so check the current SBB timetable rather than relying on a fixed travel-time estimate.
Sources
- Flims Laax: Lake Cauma — official 2026 opening hours, admission prices, activities, restaurants, rules, lift, parking, and access information.
- Flims Laax: Transport — current PostBus and local transport information.
- Flims Laax: Getting There — rail and PostBus guidance for reaching the Flims Laax region.
- SBB — official Swiss public-transport timetables and ticket planning.
- Graubünden Tourism: Caumasee Circular Hike — hiking information for combining Caumasee with Conn and the surrounding forest.
- Earth Surface Dynamics: Flims Rockslide Research — geological context for the prehistoric Flims rockslide landscape.
