Jacques Cousteau’s old underwater garage in the Red Sea is now a thriving coral reef. That seems fitting and a great tribute. In the early 1960’s Jacques and his team built the first underwater lab called the Conshelf I and spent a week underwater at 37ft. This was followed by the Conshelf II shown in this video where they spent more than 30 days. I read a bit on this in the fantastic “Life and Death in a Coral Sea” - essentially Jacques blog from his travels in the late 1960’s in the Red Sea and Indian Ocean. I highly recommend this book if you can find it. From his ease at identifying everything he saw underwater by Latin names to numerous examples of his engineering genius, it is a fascinating read and provides great insight into this legendary aquatic pioneer.