There are several sets of outdoor shower areas (don't know about indoor). Beware, there are lines as the day goes on. (At least for us, we cruised on a full ship in July). Not really long but it was very hot and sunny waiting and after several awesome conch coolers, I wasn't too patient. There is a separate foot stall (you know, lower spray head) and we just used that to get the sand out of the flip flops and showered on the boat......worked out too...
Barb