This page lists 3 swim spots in South Dakota, where the swim season runs late june through august. Open each listing for directions, fees, and current conditions before you travel.
South Dakota has 3 documented swim spots in this directory — these are mixed or unusual water types that do not fit a single category — check each listing individually for what you are actually walking into. The South Dakota swim season runs Late June through August, peaking July. Access points cluster near Rapid City, Hot Springs, Keystone, and Nemo. Every listing below links to a full page with directions, fee notes, access rules, and safety context.
Hot Springs South Dakota Swimming Spots is a varies - see below destination on Varies - see below in SD near Rapid City, Hot Springs. Fee note: Varies - see below.. Confirm current access and conditions before you go — no lifeguards at informal spots.
Mount Rushmore Region Swimming Spots near Rapid City, South Dakota is a natural swimming spot. What people come for: Cliff jumping at Horsethief Lake; Scenic waterfall at Hippie Hole. There is a fee or park admission, and there are no facilities on site. Best visited in June through August. Always check water depth and underwater hazards before jumping or diving.
Rapid City and Nemo Swimming Spots near Rapid City, South Dakota is a natural swimming spot. What people come for: Cool, clear creek waters; Surrounded by Black Hills scenery. There is a fee or park admission. Best visited in June to August. Always enter water feet-first.
Black Hills water is cold and clear; Evans Plunge spring water holds about 87°F.
Reading conditions before you go
Because this group mixes water types, treat each listing on its own terms rather than applying one rule to the set.
Where a listing names its water source — spring-fed, dam-released, tidal — that source tells you more about temperature and current than the category does.
Recent rain matters for anything moving and matters less for anything still.
In South Dakota, the South Dakota Department of Agriculture and Natural Resources publishes the water-quality and algal-bloom advisories that apply to these waters. Check them alongside the live gauge data rather than instead of it.
Other safety in South Dakota
Scout depth and current from the bank before entering anywhere unfamiliar, and enter feet-first the first time.
Assume no lifeguard, no cell signal, and a long response time.
Check posted signage for swimming bans — these are often the sites where legal status is least obvious.
Spearfish Canyon and the Black Hills creeks run cold year round, and summer thunderstorms cause fast rises in the narrow canyons.
Cold water deserves more respect than most swimmers give it. The National Weather Service notes that cold shock can be as severe at 50-60°F as at 35°F, and that the involuntary gasp reflex can be triggered by water as warm as 77°F — which is why entering slowly matters even on a hot day.
When to go
South Dakota swims late june through august, with the most reliable water july. Black Hills water stays cold; prairie lakes warm faster.
Varies by listing — open the individual pages for season notes.
3 of these listings carry their own best-time note from the land manager or from reader reports — open them for the specifics rather than relying on the state-wide window alone.
What to bring: Water shoes, a dry bag, and a charged phone with an offline map.
How many other swimming holes are there in South Dakota?
We document 3 swim spots in South Dakota. That is the number with enough verified detail — access, directions, and conditions — to publish, not the total number that exist. They cluster near Rapid City, Hot Springs, Keystone, and Nemo.
When is the best time to swim other spots in South Dakota?
Late June through August, with the best conditions july. Black Hills water stays cold; prairie lakes warm faster. Varies by listing — open the individual pages for season notes.
Are South Dakota other swimming holes free?
Of the 3 listed here, 3 varies. Fees are usually a state park or day-use charge rather than a swimming charge, and they change season to season — open the individual listing before you drive.
What should I check before swimming in South Dakota?
Three things: the live flow or level at the nearest USGS gauge, the current advisories from the South Dakota Department of Agriculture and Natural Resources, and the forecast for anywhere upstream of you. Spearfish Canyon and the Black Hills creeks run cold year round, and summer thunderstorms cause fast rises in the narrow canyons.
Is it safe to swim in South Dakota other spots after rain?
Generally no, not straight away. Runoff raises the current, pushes new debris into familiar pools, and spikes bacteria counts. Give moving water 24 to 48 hours to clear after heavy rain.