E.S.
Hi! My kids both sail and they have watertight containers that go around their neck for their phones. Actually, they're good at using them whenever they think their phones may get wet. If someone was awake I'd ask where my husband got them... but I'd check REI first. Oh, he bought Otterboxes for all his guys because of too many phone-water incidents.. I don't know if they have any extra space to throw anything else in though like the thing my kids have.