Colorado's Best Beaches

Lather up with sunscreen and bring your umbrellas every summer for swimming at Colorado’s best beaches. Colorado’s avid sun worshippers’ think there’s nowhere better to work on your tan and capture some much-needed R-and-R. Take a dip in these or other Colorado lakes, find lakeside lodging or learn about places to fish.

The winding fingers of Blue Mesa Reservior, near Gunnison, CO
Medano Creek in Great Sand Dunes National Park and Preserve
Wakeboarding at Boulder Reservior, Boulder, CO
Soaking up the sun on the shores of Grand Lake, CO

Beaches in Colorado are truly unique, with breathtaking views of the Rocky Mountains that you won’t typically find along ocean coastlines. Whether it’s sunbathing, camping, swimming or building sandcastles — we guarantee that a trip to the beach will be one of your most memorable.

Blue Mesa Reservoir, Curecanti National Recreation Area

Blue Mesa Reservoir is the state's largest body of water, which means abundant recreation and lounge-worthy beaches. As U.S. Hwy. 50 winds through the pinyon-dotted, high-mountain desert between the rural communities of Montrose and Gunnison, it opens up into a broad landscape of sparkling blue water and talus-sloped hills.

Note: Blue Mesa Reservoir's marinas are closed for the summer 2022 boating season. 

While much of the shoreline is rocky, you’ll find good swimming areas at the Bay of Chickens, Dry Creek and Old Highway 50 beach. The water is always cool, and there’s nothing more refreshing on a hot day spent in the high-altitude sun.

Medano Creek, Great Sand Dunes National Park and Preserve

Medano Creek at Great Sand Dunes National Park and Preserve is Colorado’s clandestine swimming beach. Every spring, the wide, shallow and gently flowing Medano Creek emerges from the Sangre de Cristo Mountains behind the sand dunes to form an oasis for those waiting to build sandcastles and cool off in its divinely chilly waters. Just as quickly, come late August, the creek disappears for another year.

Popular activities at Medano include swimming, sand sculpting, skimboarding and strolling along the world-famous dunes surrounding the water (médano is Spanish for sand dune). Be sure to check Great Sand Dune National Park and Preserve’s website for updated information on the creek’s flow.

Chatfield State Park

Head on over to Chatfield State Park's reservoir when you’re craving a beautiful location to bask in Colorado’s warm rays. With pristine view of the Rocky Mountain foothills, Chatfield State Park is a beautiful setting for gathering with friends and family.

This state park is one of the most popular destinations in metro Denver, with plenty of activities to suit your beach-lubbin’ fancy. Whether it’s barbecuing, wildlife viewing, hiking or water sports. If beach camping perks your interest, Chatfield doesn’t disappoint. All 197 campsites are within walking distance of the water and come equipped with picnic tables and grills. Find lakes at other Colorado State Parks >>

Grand Lake

Surrounded by steep, pine tree-covered hills, Grand Lake’s sparkling blue water is the perfect beach destination for a day trip or weeklong getaway. Situated on the western edge of Rocky Mountain National Park, Grand Lake is Colorado’s largest natural lake — an idyllic spot for scenic lounging near glassy waters and poignant peaks.

When you’re not cooling off in the high alpine lake, check out the collection of boats skimming across the water. Speedboats, canoes, party and fishing boats are available for rental at the marina. Grand Lake is also appealing for the beach goer who appreciates a lively boardwalk. Stroll along historic Grand Avenue to peruse more than 60 shops and restaurants. Learn more about summer in Grand Lake >>

Boulder Reservoir

Unobstructed views of the Boulder foothills dominate Boulder Reservoir, making it difficult to believe that it’s only minutes from nearby cities like Boulder and Longmont. A popular day-trip spot for locals, this beachy reservoir is a favorite for runners, bikers, swimmers and beach loungers wanting to relish in the vacation atmosphere.

Boulder Reservoir is a diverse landscape, ranging from areas that feel like deserts to swampy marshes that will make you second guess that you’re in Colorado. The 700 acre state park provides many things to do and see while you’re not relaxing on the warm sands, including friendly encounters with furry and feathery wildlife.

Jackson Lake State Park

There’s no better description for Jackson Lake State Park than an oasis amid Colorado’s eastern plains. Its warm, South Platte River-fed water and sandy bottom beaches welcome swimmers and water skiers looking to cool off each summer. Chosen as one of the “Top 15 Park Beaches” by Reserve America, Jackson Lake is must if you’re vacationing in the area or just passing through Colorado’s eastern plains

There’s even treasure hunting at Jackson Lake. The state park is one of many secretive geocaching locations around the world. Geocaching is where participants use GPS to locate hidden containers with various treasures. You can register to participate at the official geocaching website. Jackson Lake was also named an International Dark Sky Park in 2020, so stick around for amazing stargazing after a day of fun in the sun.

Aurora Reservoir

White sand welcomes sun lovers to this urban Aurora oasis, along with plenty of activities to keep the whole crew busy, from SUP and kayak rentals to fishing, swimming, boating, archery, a nature center and, of course, plenty of places to just picnic and relax. Kids love to hunt for turtles and crabs in the clear blue water.

When you've had enough of those pursuits, consider cruising the 8-mile paved bike path that's steps from the water.

South Bay, Horsetooth Reservoir 

Just west of Fort Collins, this sparkling-blue reservoir has a biscotti-tinted, sandy beach meant for your favorite beach towel. Put on your SPF and enjoy the views of rocky peaks and towering evergreens. With 6.5 miles of water, you’ll spot canoers and kayakers from the shore. If you get bored of laying out, fish, scuba dive, bike, hike, rock climb or water ski the day away. 

Plan to stay into the evening so you can spot twinkling stars in the pitch-black sky shoreline. 

North Star Beach, North Star Preserve Park

This butterscotch-colored, sandy beach is located along a calm stretch of the Roaring Fork River. Surrounded by rolling hills and forest-green vegetation, you’re definitely not on an average beach. Located on Hwy. 82, just six minutes from Aspen, the beach has easy access. Or you can visit the shore while floating the river on a stand-up paddleboard, canoe or kayak (note: you must put-in at Wildwood and the beach is just a place to get on dry land for a bit, the take-out is at the North Star Pedestrian Bridge).

Find water-safety tips >>

Photos: Blue Mesa Reservoir, copyright flickr/Nature's Image; Medano Creek, copyright flickr/adventurejournalist; Boulder Reservoir