Orange Grove is similar to Catfish Hotel in many respects.

• The north wall is nearly vertical and slopes slightly inward, reaching depths of around 70 feet.

• Facing this is a steeply sloping, muddy bottom.

• Over the years, many trees have fallen into the sink. Their trunks and branches now cover the bottom.

• Unlike the large cavern opening at Catfish Hotel, there are only a few small openings at the bottom. Unless you are a certified Cavern or Cave Diver, you won’t have a light. There is little to be gained by going inside; there just isn’t enough light to see.

• Like Manatee, there is usually a thick blanket of duckweed covering the surface. As with Manatee, your bubbles breaking the surface will allow sunlight to stream in, creating a spectacular light show.

• Also like Manatee, there is a shallow ledge you can stand on at the bottom of the stairs. Back in cautiously; you won’t be able to see it because of the duckweed. Be aware that this ledge drops off suddenly on two of its sides.

• Unlike Manatee, there is no outdoor shower or any way to rinse off after your exit. Use our earlier trick for exiting as duckweed-free as possible.

• As with Troy, Orange Grove is subject to periodic flooding. However, because it is well removed from the river, this happens less often.

Like Troy, you check in at a self-service kiosk at the entrance. The only usable facilities are a porta-potty. There is a dive center nearby where you can get air and Nitrox fills. However, their rental inventory is limited and caters mostly to cave divers.

There are no air fils or gear rentals on site. Bring what you need with you.