Island Park sits at approximately 6,300 feet elevation in eastern Idaho, creating a camping environment characterized by cool summer nights even when days reach into the 80s. The surrounding Caribou-Targhee National Forest extends across 3 million acres with numerous lakes and streams flowing into the famous Henry's Fork of the Snake River. Seasonal changes affect campground availability, with most facilities operating between May and October due to heavy snowfall during winter months.
What to do
Fishing at Henry's Lake: The lake holds prized cutthroat and hybrid trout with designated shore access points. At Henrys Lake State Park Campground, "Save money with the Idaho State Parks Pass. RV and tent camping fishing and boating. I have stayed here numerous times. Cell service spotty but can be achieved. Wildlife can be viewed from inside RV," notes James S.
Kayaking on calm waters: Several campgrounds offer water access without requiring a motorized boat. "The free Kayak rentals are a plus also. We also saw a moose swim across the lake, get up on shore and run through the campground. So awesome!" shares George B. about their Henry's Lake experience.
Explore nearby attractions: The region offers diverse activities beyond Yellowstone. "Very close to other places to visit; Yellowstone NP, Mesa Falls, Harriman State Park, Earthquake Lake, Big Spring, really to many to list," according to a camper at Henry's Lake State Park.
Spring water access: For fresh drinking water, visit Howard Springs. "If you put 'Howard springs picnic site' on your gps you can drive 8 minutes on 20E and there are vault toilets with fresh, crisp spring water," advises Kimberly M., who stayed at Bootjack - Dispersed Camping.
What campers like
Secluded sites away from crowds: When established campgrounds fill, dispersed options provide alternatives. At Henry's Lake BLM Dispersed, a camper notes, "Super quiet, super scenic. We got into Henry's Lake Dispersed area around 6pm on a Saturday night. We stayed to the left of when the road splits, because that's where the pit toilets were. There were 2-3 spots left, everyone spaced out nice let."
Clean restroom facilities: Multiple reviewers mention this as a priority. "The bathrooms are very nice and clean, with showers and flushing toilets," reports Sarah E. about Henry's Lake State Park, while Steve N. observed at Henry's Lake BLM that "Toilets were super clean, super stocked."
Wildlife viewing opportunities: Many campers report animal sightings from their sites. At Henry Flats Dispersed Spot, one camper shared their experience: "Location is stunning, off the main road, and feels safe. Additionally it is stunning! The lake is incredible, however it was VERY windy while we were there. Beautiful views and safe setting for kids and pets."
Cell service reliability: Important for those needing to stay connected. "I had great service with Verizon," reports Kimberly M. about Bootjack, which matches experiences at other sites in the area.
What you should know
Weather variability: Mountain elevation means rapid changes. "We went while it was raining…would not recommend. It was incredibly muddy and had lots of standing water," warns Danielle S. about Targhee Creek.
Wind conditions: Several campgrounds experience strong winds due to their location. At Baker's Hole Campground, campers should "be prepared for wind in your campsite though, although beautiful, the mountains all around make for a strong wind tunnel, make sure all is staked down."
Bug activity: Varies by season and location. One camper at Henry Flats noted: "It was quite buggy when we first got here, but as soon as the sun started setting, they died down and the temperature dropped significantly."
Road conditions: Access varies for dispersed sites. "The road is very rough with many potholes though. If the weather is good it would be a great place to be!" advises Danielle S. about Targhee Creek.
Reservation importance: During peak season (June-August), secure spots early. "We reserved our site in March for July and are glad we did as the campground was full," reports one Henry's Lake State Park visitor.
Tips for camping with families
Playground access: Some campgrounds offer dedicated play areas. At Yellowstone Grizzly RV Park and Resort, "It's a pretty huge campground. We didn't even realize it until we wandered through for an evening walk and saw the entire other section of the campground. Most sites had fire pits, and they're pretty well spaced out so you're not on top of your neighbor. My kids loved riding their bikes around the campsites."
Pet-friendly hiking trails: Dog owners appreciate the network of trails near many campgrounds. "Im a solo female traveler and felt super safe which is important to me. There are quite a few surrounding campers, but not to the point where it feels overcrowded," shares a Bootjack visitor.
Safety considerations: Wildlife awareness matters with children. "We did see some bears and elk from our site which was fun! Basically, good weather is recommend!" noted a Targhee Creek camper.
Space between sites: Important for families with active children. At Henry Flats, "There are several places to camp along the red rocks pass road if you don't want to drive all the way down to the lake. The lake sites are so beautiful that if you opt out you're definitely going to miss out."
Tips from RVers
Pull-through site availability: Makes setup easier for larger rigs. Red Rock RV Park offers "several large rig sites and are in an area with lots to do!! Hiking, biking, UTVing, kayaking and Yellowstone! Several lakes and rivers in the area and great fishing!"
Dog-friendly campgrounds near Island Park: Most allow pets but have different policies. "Big campground right outside of Yellowstone. Very cool area with lots to do and see. Only a couple of miles from the west entrance to Yellowstone National Park. It borders a forest with plenty of trails," says Jason B. about Yellowstone Grizzly RV Park.
Hookup options: Vary across the region. "The sites are beautiful with wide open views. Highly recommended," says Chris P. about Yellowstone Park West Gate KOA Holiday, while Kloee S. describes Red Rock RV Park as having "huge pull-thrus, and they are even adding more. They have some buddy sites too!"
Turnaround space: Critical for larger vehicles at dispersed sites. At Bootjack Dispersed Camping, "We choose a dead end road and had the area all to ourselves. Had to back up the road about 200 feet because there was no turn around for the size of our rig (36 foot 5th wheel). But it is doable."
Scout
