03/22/2019 - 03/24/2019

Bonne Terre Mine

Deep earth diving

Where we are diving

Join Trip Leader Don Smith on a top-ten adventure. Bonne Terre is a flooded underground mine that allows for year-round diving. The temperature is a steady 60 degrees, with no thermoclines, and requires at least a 7mm wetsuit, hood and gloves. Dry suits are recommended. The visibility is excellent at over 100 ft. Sights include: mammoth architecture, oar carts, scaffolding, grating, staircases, pillars, slurry pipes, the famed elevator shaft, and much more. Bonne Terre Mine is without a doubt some of the most unusual diving in the region.


Where we are staying

The Super 8 is conveniently located one mile from Bonne Terre Mine and includes free wifi and complimentary continental breakfast. You will also find several restaurant options within 5 minutes of the hotel. Bonne Terre Mine is about an eight-hour drive from Omaha, four-hour drive from Springfield and five-hour drive from North Liberty.


  • $510 per diver

Deposit and payments

  • Balance due upon sign up

Other info

  • Prices are based upon double occupancy
  • All payments are non-refundable
  • Prices are subject to change due to events outside of our control

Seasonal weather

The average water temperature is 60°F with no thermocline. Air temperature is to 65°F year-round.

What prior travelers say

“This is truly one-of-a-kind diving! We’ll delve deep under the surface of the earth into the world’s largest underground lake and experience crystal clear water and interesting mining history. Plus, it’s a great chance to enjoy regional diving.”

– Chris H.

What’s included

  • 2 nights of accommodations
  • 4 dives
  • Breakfast

What’s not included

  • Transportation
  • Dive insurance (required)
  • Travel insurance (recommended)

Recommended courses

  • Perfect Buoyancy

Recommended equipment

  • Wetsuit, hood, gloves
  • Regulator with pressure gauge
  • ScubaPro Hydros BC

Need help packing?

We can’t pack for you, but we can share our packing list and travel tips.

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