The 6 Best Beaches and Swimming Spots in Wyoming
Discover Wyoming’s most picturesque beaches and swimming spots, from alpine lakes to sandy reservoirs—the best aquatic escapes in a landlocked state.
When most people think of Wyoming, images of jagged mountains, vast prairies, roaming bison, and cowboy towns spring to mind. But despite being landlocked, Wyoming boasts some surprisingly stunning lakes and beaches worth seeking out. With crystal-clear alpine lakes, broad sandy shores, kid-friendly water sports, and unrivaled mountain vistas, Wyoming’s swimming and beach destinations offer a unique kind of summer magic. Here’s an in-depth look at the six top destinations that make a Wyoming summer unforgettable.
Swimming in Wyoming: What You Need to Know
Wyoming’s summer is famously brief but intensely cherished. Locals make the most of every sunny, warm day—whether floating in a glacier-fed lake, splashing in a sandy reservoir, or soaking up scenery from a paddleboard. Before heading out, remember these essential rules:
- Respect wildlife: Many swim spots are in or near protected habitats—be bear aware and follow all posted advisories.
- Prepare for cold water: Even in midsummer, many lakes are brisk due to snowmelt. Quick-dry towels and insulated swimwear can make a difference.
- Embrace adventure: The combination of high elevation and breathtaking landscapes means swimming in Wyoming is always memorable, if sometimes chilly!
- Pack out your trash: Leave every spot as pristine as you found it.
String Lake: Crystal-Clear Waters with Teton Views
Located in the heart of Grand Teton National Park, String Lake offers a swimming experience like no other. Where most lakes in the area are icy cold year-round, this long, narrow lake is notably shallow and quickly warms up in the summer sun.
- Family friendly: The gentle, sandy shoreline makes it ideal for all ages.
- No motorboats allowed: The water is quiet and calm, excellent for paddling or relaxing.
- Activities: Bring your own canoe, kayak, or paddleboard—or rent gear at Dornan’s nearby.
- Picnic perfect: Picnic tables dot the shoreline; pack a lunch and take in panoramic views of the snowcapped Tetons.
- Wildlife caution: Be sure to follow all food storage rules. Bear and moose sightings are common!
Pro tip: Arrive early during summer as parking is limited and the area is very popular.
Alcova Reservoir: Kid-Friendly, Sandy, and Lively
About 30 miles southwest of Casper, Alcova Reservoir is a prime summer escape for locals and travelers. The reservoir’s sheltered coves host four different beaches suitable for swimming, but families flock to the Children’s Swim Beach.
- Children’s Swim Beach: Shallow water, soft sandy bottom, and a roped-off safe zone for young swimmers.
- Family Activities: Volleyball nets, a playground, and grassy spots for picnicking.
- Boating and rentals: With eight boat ramps, it’s easy to set off for fishing, tubing, or waterskiing. Rent paddleboards, kayaks, or bikes at the marina.
- Stay a while: Enjoy camping, RV or tent sites, and finish your day with a trip to the lakeside ice-cream shop.
Insider’s tip: Summer weekends can be busy—consider a midweek visit and stay overnight to maximize your relaxation.
Firehole River Canyon: The Classic Yellowstone Swim
Yellowstone National Park isn’t just for geysers and hiking—its Firehole River Canyon is the park’s premier swimming destination. Unlike the park’s famous hot springs, the Firehole is safely cool in summer but comfortable for a brisk dip.
- Swimming hole access: Easily found alongside the Firehole Canyon Drive.
- Kids’ safety: Life jackets are recommended as currents can be strong, and the rocky bottom can be slippery—water shoes help.
- Facilities: Vault toilets and changing areas are conveniently located across the road.
- Relax or spectate: Non-swimmers can unwind at the sandy banks and enjoy the view as others leap into the water.
Note: Swimming is only permitted in designated stretches for safety; always check current park regulations before entering the water.
Sandy Beach at Glendo: Wyoming’s White-Sand Playground
The Sandy Beach area of Glendo State Park sits on the reservoir’s east side and is the go-to for traditional beach-loving families. With its wide strip of fine white sand and impressive views of Laramie Peak, this is the closest Wyoming gets to a classic beach vacation.
- Spacious shoreline: The sands extend for a quarter mile or more, providing plenty of space for swimming, sunbathing, and sandcastle-building.
- Dual campgrounds: Sandy Beach Dune and Sandy Beach Willow both offer sites close to the water, though late summer visitors may have a long walk to the shoreline as water levels recede.
- Full facilities: Electric hookups, drinking water, group shelters, ADA-accessible pads, and more.
- Campsite reservations: Reserve in advance, especially for summer weekends.
Key Facilities at Sandy Beach Dune & Willow
| Amenity | Description |
|---|---|
| Electric | Available at select campsites |
| Drinking Water | Accessible at several points |
| Vault Toilets | Multiple, well-maintained |
| Picnic Shelters | Group day-use shelters by the water |
| ADA Access | 7 accessible camping pads |
Seasonal note: Due to fluctuating water levels, the distance to water from your tent or RV may vary throughout the summer. The best window for swimming is late June through mid-August.
Colter Bay Picnic Area: Gateway to Jackson Lake
Colter Bay, located on the northern end of Jackson Lake within Grand Teton National Park, is a favorite picnic and swim stop. While Jackson Lake stays chilly year-round, summer afternoons draw brave swimmers for a quick dip and lingering lakeside lunches with glorious mountain backdrops.
- Spectacular views: The Tetons rise directly above the bay, offering unmatched photo opportunities.
- Day-use area: Grills, picnic tables, and plenty of parking make it a convenient stop for travelers exploring the park.
- Boating: The nearby marina offers canoe, kayak, and even sailboat rentals.
- Wildlife: Keep an eye out for bald eagles, ospreys, and the occasional moose near shore.
Best for: Picnics with a view, active adventurers, and anyone eager to swim with a mountain panorama.
Keyhole State Park: Lake Fun in the High Plains
Located between the Black Hills and the Big Horn Mountains, Keyhole Reservoir in Keyhole State Park is surrounded by rocky bluffs and rolling pine forests. The park’s broad main beach offers classic swimming, fishing, and water play in a unique high-plains setting.
- Swimming beach: Broad sandy area with gradual entry—perfect for families.
- Boating and water sports: The reservoir is popular for boating (motorized and non-motorized), fishing, and even the occasional water skier.
- Camping: Sites for tents and RVs, many with pleasing views over the lake.
- Birdwatching: Don’t miss the chance to spot ospreys, pelicans, and waterfowl during your stay.
Best time to visit: June to August sees the warmest water and longest days; early morning is best for wildlife sightings.
Tips for Making the Most of Wyoming’s Beaches
- Timing is everything: Summer is short—late June to mid-August offers the warmest water and prettiest scenery.
- Weather prep: Afternoons can be hot, but mornings and evenings drop quickly. Pack layers and sun protection.
- Water safety: Snowmelt and unpredictable currents mean caution, especially with children.
- Leave no trace: Pack out all trash and unused food.
- Respect park rules: Many sites have strict food storage and wildlife policies; always follow posted guidance.
Frequently Asked Questions (FAQs)
Q: Is it warm enough to swim in Wyoming lakes during summer?
A: Yes, but it varies! Shallow lakes like String Lake and Children’s Beach at Alcova Reservoir get quite inviting by July, but deeper lakes—especially those fed by glacier melt—can be cold even on hot days.
Q: Are Wyoming’s beaches suitable for children and families?
A: Absolutely—spots like Children’s Swim Beach at Alcova, Sandy Beach at Glendo, and Keyhole State Park are favorites for families thanks to gentle shoreline slopes and extra amenities like playgrounds and picnic tables.
Q: Do I need a permit or reservation to swim or camp at these beaches?
A: Entry fees apply for state and national parks, and advanced campsite reservations are highly recommended in summer—especially for busy areas like Glendo’s Sandy Beach or Grand Teton’s String Lake parking.
Q: What is the best time of year for a beach vacation in Wyoming?
A: The best months are June, July, and early August, when air and water temperatures reach their peak and most facilities and rentals operate at full capacity.
Q: Are motorboats allowed at all lakes?
A: Most allow boating, but lakes like String Lake restrict the use of motorized boats to preserve the peaceful, family-friendly environment. Always check individual park regulations before launching.
Explore Beyond the Beach: More Wyoming Summer Adventures
- Camp under the stars: Nearly all sites discussed here offer camping or are close to developed campgrounds—make the most of clear summer nights and spectacular sunsets.
- Try a water sport: Paddleboarding, canoeing, kayaking, and paddle boating are popular and accessible, with rentals often available nearby.
- Road trip ready: Many lakes sit along classic Wyoming scenic byways—pair your swim stop with a drive through epic landscapes.
Wyoming’s beach and swimming season may be short—but it’s second to none for beauty, solitude, and unforgettable fun. Whether you seek gentle sand, stunning peaks, or thrilling water play, the Cowboy State is ready to surprise you with its best-kept aquatic secrets.
