The sea is your home; the salty air speaks a language that guides you to your destiny. You gain the following benefits:
• Your Wisdom score increases by 1.
• You gain proficiency in navigator’s tools and water vehicles.
• You do not suffer penalties to rolls made to navigate while traveling by water during inclement weather, including low visibility.
• Your proficiency bonus is doubled for any ability check you make that uses your water vehicles proficiency.

From: Izirion's Enchiridion of the West Marches