[NSFW] What watersports activities do you love?

The Urban Dictionary defines watersports as: “In BDSM terminology, refers to sensual or erotic play involving bodily fluids, typically urine, saliva, and less commonly, blood. Considered ‘edge-play’, because it is obviously somewhat unhygienic.” Just for good measure, let’s include lapping breast milk from lactating ladies; wet and messy fetishism, and bukkake(sex_act). What NSFW watersports rev up your engine? And not to worry if the question brought a mundane, safe-for-the beach version of water sports to mind. If you have that sort or sport to exhort, then you want the SFW version of this question.