Skip to content
Park'd
Things to do · 6 of 63 parks

National parks with freshwater swimming

Last verified
6 of the 63 US national parks list freshwater swimming as an activity. Here's every one, with how busy it got in 2025, its quietest month and what it costs to get in. Then tick off the ones you've done.

Bright dots offer freshwater swimming. Tap any park to tick it off your checklist.

Quietest picks for freshwater swimming

  1. 1Voyageurs National Park206,326 visits
  2. 2Great Sand Dunes National Park & Preserve432,498 visits
  3. 3Lassen Volcanic National Park504,777 visits

By 2025 recreation visits (NPS).

Most parks for freshwater swimming

  • California 1
  • Colorado 1
  • Indiana 1
  • Maine 1
  • Minnesota 1
  • Washington 1

Ideas from the National Park Service

Freshwater Swimming ideas, park by park

The NPS lists 2 named outings tagged freshwater swimming across 2 of these parks. Here are the shortest few in each park. Every title opens its nps.gov page.
  • Splash in Medano Creek1-8 Hours · Spring

    Medano Creek is a popular seasonal stream enjoyed by all ages.

    Pets OK
  • Fifteen miles of sandy beach along the southern shore of Lake Michigan offer a wide variety of recreational activities. Whether it's enjoying a summer sunset stroll or marveling at the arctic beauty of Lake Michigan's…

    FeePets OK

From the NPS Data API's things-to-do records, checked 2026-10-01.

FAQ

Freshwater Swimming, quickly

Which national parks offer freshwater swimming?
6 of the 63 national parks list freshwater swimming as an activity, according to the National Park Service: Acadia, Great Sand Dunes, Indiana Dunes, Lassen Volcanic, Olympic, Voyageurs.
What's the least crowded national park for freshwater swimming?
By 2025 recreation visits, Voyageurs National Park (206,326 visits), then Great Sand Dunes (432,498). The busiest park on this list is Acadia, with 4,079,318.

Sources · 2

  1. 1.NPS Data API — /parks (all park units) · National Park Service (U.S. Department of the Interior)
  2. 2.NPS Visitor Use Statistics — monthly recreation visits, 2021–2025 (IRMA stats REST service) · National Park Service (U.S. Department of the Interior) — Visitor Use Statistics Program

Activities are the ones each park lists in the NPS Data API. Check the park's own nps.gov page for current trail, water and permit conditions.

Park'd · free on iPhone & Android

Done some freshwater swimming? Log the trip.

Park'd for iPhone and Android: check off every national park on a map, log trips with photos, notes and a favorite memory, and watch your stats and badges grow.

Download on the App StoreGet it on Google Play