The Historic Riverside Hot Springs Inn

Comfy, Cozy & Quaint

Quiet & Cozy Portneuf Lounge

Onsite Hot Mineral Springs & Massage Therapy

Selection of Pacific Northwest Wines

Filet Mignon at the Portneuf Grille & Lounge

Riverside Wedding

A Culinary Experience at the Portneuf Grille & Lounge

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LOW Winter Rates! Includes onsite soaking, weekday Contl Bkfst & weekend Bkfst vouchers!
Complimentary Continental Breakfast Mon-Fri mornings, restaurant breakfast vouchers weekends!
Take advantage of our Package Soak & Spa Deals! View Special Offers
Live dinner music every Thursday night from 6-9pm. View Entertainment
Find out why we're called The Honeymoon Hotel with our Romance Packages. View Romance Packages
Join us for Happy Hour Nightly with $2 Tacos & Drink Specials - Tuesdays 5-6:30pm!
Cioppino Fridays! Great fish & seafood Mediterranean style stew - Friday nights only while it lasts!
Date Night - Every Thursday! Live Dinner Music in the Portneuf Grille & Lounge. Lodging & Dinner Packages Available!
Meeting & Event Space for up to 25 people. Discover our affordable Complete Meeting Packages
Midweek couples 1 hr massage. $100 per couple for hotel guests only added on to your room! 24 hr notice
Snowbird's Special Sun - Thurs for those 65+ during March & April take 15% of Best Available Lodging Rates.
Join us for Easter Breakfast 208-776-5504

Portneuf Grille & Lounge Reservations

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My husband and I stumbled onto this fabulous Inn and what an unexpected find it was. Old and quaint and loaded with charm. We enjoyed a couples massage that was one of the best I've ever had and the mineral baths are PRIVATE. Quaint is code for "not everything is modern or perfect BUT this place is not to be missed if you are looking for laid back and romantic.

- TripAdvisor reviewer June 9, 2011

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Welcome To The Historic Riverside Inn


              Riverside Hot Springs Inn & Spa | Portneuf Grille & Lounge   
                  EAT    DRINK    SOAK     SPA    SLUMBER

The Riverside Hot Springs historic Inn is located next to the Portneuf River in downtown Lava Hot springs. The Riverside Hot Springs Inn is a lodging, dining & spa experience!  We are the only full service hotel in town, featuring 18 guest rooms, world famous onsite hot springs, massage, & award winning onsite restaurant & lounge, the Portneuf Grille & Lounge.  We've got it all under one roof-you don't even have to leave the building.  Perfect for the business traveler or those seeking a relaxing, rejuvenating experience.
All overnight stays include complimentary wifi, on-site lighted parking, private on-site hot minerals springs soaking and mid-week Continental Breakfast or weekend breakfast vouchers in our restaurant (based on single or double occupancy), Staffed 24/7.
Listed on the National Register of Historic Places with the National Park Service, the Riverside Hot Springs Inn is the only full service hotel in town.  The Riverside Hot Springs Inn was built in 1914 and quickly acquired the label of “The Honeymoon Hotel” for its yesteryear elegance. The historical Inn was known to be visited by several famous people including President Theodore Roosevelt.

Our entire facility is non-smoking.  Both the hot water and the building is heated with hot geothermal water.  Eco friendly bath guest amenities.

Download Fact Sheet

  • Check in: 3pm
  • Check out: 11am
  • Check In Age: Minimum 18 years old.
  • Child Policy: 14 years and older please.
  • Pet Policy: Maximum 2 dogs. There is a $15 per night, per pet fee accessed. Dogs may not be left in guest rooms unattended at any time.
  • Smoking Policy: The Riverside Inn is a non-smoking facility. Smoking will result in a $200 charge.

Upcoming Hot Springs Area Events
  • Live Dinner Music Thurs Nights at the Riverside Inn, Lava Hot Springs, Idaho, January 1, 2015 to December 31, 2015
  • Dinner Music with Toney Rocks - Portneuf Grille & Lounge, Lava Hot Springs, Idaho, April 16, 2015
  • Dinner Music with Herbert the Entertainer - Portneuf Grille & Lounge, Lava Hot Springs, Idaho, April 23, 2015
  • Dinner Music with "The Saturday Giant" -Portneuf Grille & Lounge, Lava Hot Springs, Idaho, May 7, 2015
  • Dinner Music with Jacob Cummings - Portneuf Grille & Lounge, Lava Hot Springs, Idaho, June 4, 2015

Riverside Hot Springs Inn
255 East Portneuf Street • Lava Hot Springs, Idaho 83246
Phone: (208) 776-5504 • Fax: (208) 776-5504
Toll Free: (800) 733-5504

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Wednesday April 1, 2015