Belmont Hot Springs RV Park

What to expect

Belmont Hot Springs is first an RV park and second a place to soak. The draw is a pair of warm, spring-fed lakes on the property, which the operator lists at about 97°F and 104°F36°C and 40°C. They are open ponds with natural edges rather than built pools, and they are deep. Divers have used them for years, and a 2000 Deseret News feature described winter dive groups driving down from Idaho and Montana.

Locals have also called the place Udy (or Uddy) Hot Springs. It sits in the Malad Valley in Box Elder County, just west of I-15, between the small farm towns of Fielding and Plymouth. The mailing address uses Garland. Earlier owners ran a golf course, a pool and an aquarium here. Today it is a working RV park run by Flamingo Plaza LLC, which also runs RV parks in Marysvale and Helper.

Expect gravel RV pads, a mix of overnight travellers and long-term residents, and big open sky. Recent visitor reviews mention five spring features on the property, three of them fenced off, and describe the main swimming lake as having no shallow end. A 2026 review also mentioned divers in the deep pool.

The lakes

• Cooler lake: about 97°F36°C. This is the one most guests swim in.
• Hotter lake: about 104°F40°C.

Both are natural spring water. Small fish live in the warm lakes. Reviewers describe the main swimming lake as having no shallow end, so treat both like deep swimming holes. Non-swimmers and small children need a life jacket and an adult within reach.

Prices and booking

Belmont posts its RV rates but not its day-use prices.

• Nightly RV site: $55. Military and Good Sam discounts apply to nightly stays only.
• Weekly: $325.
• Monthly: $700, plus $75 a month for electricity in winter or $125 in summer.
• Booking fee: $3 on every reservation.
• Day pass: available, but call the office (435-458-9975) for the current price and hours.
• Glamping tents: offered. Check prices when you book.

Check-in is at 1 p.m. and check-out is at noon. RV cancellations need 72 hours’ notice and glamping cancellations 7 days, and every cancellation carries a $25 fee. No-shows pay the full reserved nights. Book on the park’s website or by phone. Visitor reviews from 2025 and 2026 report nightly prices between $50 and $60, so confirm the rate when you reserve.

Facilities

Every RV site has full hookups (water, sewer, and 30 and 50 amp power) and the sites are angled for easy parking. Big rigs fit; one reviewer reported a 40-foot rig. The operator lists free showers, restrooms and coin laundry. A 2026 review counted three showers and two washers and two dryers. Wi-Fi is advertised, but at least one 2025 reviewer found it was not working, so plan on your own data.

Getting there

Belmont is about 76 miles north of Salt Lake City and 21 miles west of Logan, according to the operator. Drive north on I-15 past Tremonton toward the Idaho line and use the address, 5600 W 19200 N, Garland, in your GPS. The park is a few minutes west of the freeway. Recent reviewers note some road noise from the interstate and say fuel and groceries are 10 to 15 minutes away.

When to go

The lakes are open year-round. Cool months are the best time to soak: a 97°F36°C lake is far more pleasant on a frosty November morning than on a hot July afternoon. Fall through spring is also when dive groups show up, since warm water lets them train when lakes and reservoirs elsewhere are cold or frozen. In summer, swim early or late.

Reviewers say the lower sites are often taken by long-term guests, so book ahead if you want a specific spot.

Rules

• Pets: leashed at all times and kept out of the springs.
• Swimwear: bring a swimsuit. This is a family RV park, not a clothing-optional spring.
• Diving: certification comes through outside instructors and dive shops. Ask the office about current requirements before you arrive with tanks.
• Rates: subject to change without notice, per the operator.

Where to stay nearby

Staying at the park is the simplest option, either in your own rig or in one of the glamping tents. Tremonton, about 10 miles south, has motels, restaurants and fuel. For a different style of soak nearby, Crystal Hot Springs in Honeyville is roughly 14 miles south and has hot tubs, an Olympic pool and slides, though it no longer allows camping.

Safety notes

• Deep water: The swimming lake has no shallow end. Swim with a partner and keep a close eye on children.
• Heat: The hotter lake is around 104°F40°C. Limit your time in it and drink water.
• Fenced springs: Some spring features on the property are fenced off. Stay out of them.
• Diving: Only certified divers should dive here, and winter diving is not a beginner outing.
• Unclear information: Reviewers have reported phone confirmations that did not hold up. Get your reservation in writing.