Diving holidays have a rhythm of their own—long surface intervals, evenings...

https://quebeck-wiki.win/index.php/Is_It_Safe_to_Stay_Up_Late_on_a_Dive_Trip_If_You_Have_Early_Dives%3F

Diving holidays have a rhythm of their own—long surface intervals, evenings spent rinsing gear under soft lights, and quiet moments to unwind. One tip: download movies or podcasts before heading out, since WiFi can be spotty offshore