Bonne Terre is cool and I'll be back. Dive guides are excellent, there is a lead guide and a safety guide at the rear so if a diver has problems they can deal with it and take them up if necessary while the lead guide remains focused on the group. The "no lights" rule is often waived after the first dive IF they can see you are good divers and follow instructions, i.e. keep up with group, stay on the path, observe proper light "etiquette", etc. It is fairly regimented as it has to be, the rules are for your safety.
Be aware the water is cold, around 58 degrees. You'll want at least a 5mm with hood and gloves, or a dry suit. The guides dive dry. Of course, it remains that temp year round so in the winter that may be warmer than your other options.
Be aware the water is cold, around 58 degrees. You'll want at least a 5mm with hood and gloves, or a dry suit. The guides dive dry. Of course, it remains that temp year round so in the winter that may be warmer than your other options.