This page lists 2 river swimming holes in Idaho, where the swim season runs late june through september. Open each listing for directions, fees, and current conditions before you travel.
Idaho has 2 documented river swimming holes in this directory — a river swimming hole is a deep bend, eddy, or slack-water pool in moving water — the pocket beside the current rather than the current itself. The Idaho swim season runs Late June through September, peaking July to August. Access points cluster near Moscow, Harvard, Boise, and Emmett. Every listing below links to a full page with directions, fee notes, access rules, and safety context.
Sort live from your phone with near me, browse all U.S. river swimming holes, or open the Idaho state page.
Laird Park near Moscow, Idaho is a river swimming spot on Palouse River. What people come for: Swimming in a serene creek; Located in Saint Joe National Forest. Access is free, and you will find restrooms, picnic areas and camping. Best visited in June through August. The river current and depth can change.
View detailsOld Dam Rope Swing near Boise, Idaho is a river swimming spot on Payette River. What people come for: Rope swing over the Payette River; Refreshing swimming spot with clear water. Access is free. Best visited in June to August. Always test the rope swing and landing area for stability and depth before use.
View detailsIdaho has more soakable natural hot springs than any other state — the Payette, Salmon, Lochsa, and Boise river corridors — plus warm reservoir beaches around Boise and Coeur d'Alene.
In this directory, Laird Park and Old Dam Rope Swing are among the river spots we document in Idaho. The full list below reaches Moscow, Harvard, Boise, and Emmett.
Rivers run cold and fast into July; hot springs range from 95°F to scalding, often requiring a mixed pool at the river edge.
Check the nearest USGS gauge before you drive. Flow in cubic feet per second tells you more than any photograph: a stretch that is a calm green pool at 200 cfs can be an unswimmable chute at 900 cfs.
Give a river 24 to 48 hours after heavy rain. Runoff raises both the current and the bacteria count, and it pushes new strainers — submerged trees and branches — into places that were clear last weekend.
Read the surface. Smooth, glassy water moving fast is stronger than choppy water. A line of foam or debris shows you where the main current runs; swim on the inside of the bend, not the outside where the channel scours deep.
In Idaho, the Idaho Department of Environmental Quality 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.
If the current takes you, do not try to stand up. Foot entrapment in moving water is a common drowning mechanism. Roll onto your back, point your feet downstream to fend off rocks, and ferry across the current at an angle rather than fighting it head-on.
Strainers are the river hazard people underestimate — a fallen tree lets water through and holds a body against it. Stay well upstream of any woody obstruction.
Avoid swimming below low-head dams entirely. The recirculating hydraulic at the base is uniform across the width and is very difficult to escape.
Roadside hot springs sit directly above cold, powerful rivers. High spring flow floods many of the best pools and can sweep soakers into the main channel; check flow before you commit, and test source temperature by hand, never by stepping in.
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.
Idaho swims late june through september, with the most reliable water july to august. Hot springs are a year-round and arguably better-in-winter proposition.
Rivers peak in danger during runoff and peak in quality in late summer, when flow drops and pools clear and warm.
2 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: Sticky-soled water shoes, a dry bag, and a throw rope if your group swims regularly in current.
We document 2 river swimming holes in Idaho. That is the number with enough verified detail — access, directions, and conditions — to publish, not the total number that exist. They cluster near Moscow, Harvard, Boise, and Emmett.
Late June through September, with the best conditions july to august. Hot springs are a year-round and arguably better-in-winter proposition. Rivers peak in danger during runoff and peak in quality in late summer, when flow drops and pools clear and warm.
Of the 2 listed here, 2 free. 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.
Three things: the live flow or level at the nearest USGS gauge, the current advisories from the Idaho Department of Environmental Quality, and the forecast for anywhere upstream of you. Roadside hot springs sit directly above cold, powerful rivers. High spring flow floods many of the best pools and can sweep soakers into the main channel; check flow before you commit, and test source temperature by hand, never by stepping in.
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.