Growing up just a few miles from the beach I've grown accustomed to a somewhat nautical lifestyle. It goes without saying that when living with the sand and water as your backyard, the lifestyle ultimately works its way indoors.
The usual suspects are there for a reason — red, white and blue were meant to be used together. However, the nautical look is easily achieved with any combination of them. Blue and white makes just as much of an impact without red. The calming, chic, inviting and breezy atmosphere created with these colors is spot on seaside style.
Use maps of islands for wallpaper with white bedding and striped throw pillows and blanket. You don't have to go overboard (no pun intended) with stereotypical nautical items, but sometimes that's where all the fun is. Who says you can't have rowing club flags hanging on the wall? Have fun with it!