Below you will find a list of frequently asked questions about Bonneville Seabase. If your questions are not answered we can help

please feel free to give us a call or email us for further clarification.

email is info @

phone 435-884-3874


Where are you located?

From Salt Lake City, go West on I-80, take exit 84 (look for the Morton Salt Plant).  Turn left onto the frontage road at the stop-sign, then take the second left under the freeway onto Highway 138 (towards Grantsville).  Go South on Hwy 138 for five miles.  Seabase is on the left (East) side of the road.  View Map.

What is the GPS?

N 40 38.784', W 112 31.475'

What is the cost?

Area Use fee: $20.00 per day for snorkeling or SCUBA diving, + rental gear if needed.  Or $5 to just hang around outside the water and maybe do a pedicure with the friendly mollies. 

 Instructors are free with copy of current instructor's C-card and current insurance and at least 4 students.

Non-profit groups:

      Special pricing -By special arrangement on Thursday, Friday and Sunday only.  Please call.

If you are certified but did not bring any gear-all day is $20 area use+$11 snorkel gear+$22 for complete rental of SCUBA package, + wetsuit if needed..($5 to $10). Extra airfills available for $6 to $8 if you need for extra dives. For snorkeling, just $20 area use and $11 snorkel gear, and $5 to $10 for wetsuit if needed.

What is the temperature of the water?

Winter: Average top: 65; and a bit warmer at the bottom. Spring: mid 70s.   Summer: Average top 85; 90 bottom.

How much are lessons?

Check with Neptune Divers for the best information on SCUBA Diving lessons.
• SCUBA Certification: $300 includes pool training, books. logs, use of gear, 2 days of open water training and Certification.

* $350 for a private or semiprivate class
• SCUBA Experience or Update: $105 includes instruction, gear and area use fee. By appointment only.
• Referral:  $205 . 2 days Area Use ($20.00 each day) and snorkeling gear not included. Includes instruction, SCUBA gear and air-fills. Call for arrangements, and bring referral papers!

How big are the Seabase bays? How far across?

The water area is divided onto several connecting and separate bays.  The total of theconnecting bays is 150 feet wide, 200 yards long at the widest/longest, but very irregular in shape.  Please see aerial view on the Bays page. The Abyss is smaller, but deep, and the warmest..

How deep? What is the depth adjusted for altitude?

White Rocks Bay - 13 feet deep. You can safely dive here all day.
Habitat Bay - 24 feet at the deepest; altitude adjusted - 33 feet. 
The Abyss - 62 feet deep, alt adj 84 feet.

Hours of Operations

Thursday and Friday - 9:00 a.m. to 3:00 p.m.
Saturday and Sunday - 8:00 a.m. to 4:00 p.m.
*We can sometimes be open on the other days by special permission and advance agreement.  Minimum area use $120 for up to 5 hours on " special days".

Camping is available by pre-arrangement and for 10$ per person per night.

is it open all year?

yes-Thursdays, Fridays, Saturdays and Sundays all year, unless Christmas falls on one of those days.  Seabase is open all days in July, BY be sure to have the gate open.

What Kinds of Fish are there?

Angels, Groupers, Sharks (bamboo), snappers, Jacks, Bats, Monos, Scats, Damsels, butterfly fish, pork fish, spots, mollies, rabbit fish, mullet... and even a few shrimp, and dome sea squirts (tunicates)and many more kinds of fish..

How old do children need to be?

Snorkeling: Any age with adult supervision. SCUBA: 8 years old for SCUBA Rangers, at least 10 for SCUBA certified kids ( with a responsible certified adult..) and 10 for a SCUBA experience. Anyone under 18 needs a parent on site, or a parentally signed waiver.

Where can we stay over-night?

• Days Inn Airport: West of airport on I-80. 800-544-8313 or 801-539-853 

* Holiday inn Express at the airport-801-741-1500

* Holiday Inn Express in Tooele 435-833-0500
• Oquirrh Motor Inn: I-80 @ Lake Point (exit 99), 15 miles W of exit 84, the Seabase exit. 801-250-0118
• Best Western Inn: 365 N. Main, Tooele, 800-448-5010 or 435-882-5010.
• Seabase Scamp Rental: $22 per night per 2 people. Includes hot shower nearby, outhouses, & BBQ facilities. bring your own sleeping bag and pillows, and to cook, bring your own charcoal.  Scamps are little trailers, with a bed/table, and a couch, and an electric light, heater in cold weather. No bedding.  Primative, not 4 star-not any star!!
• Seabase Camping: $10 a person per night. Includes hot showers, outhouses, & BBQ facilities. Bring your own charcoal.

What is the altitude?

4293 feet / 1300 meters.