The word "beachy" means having characteristics or elements that are associated with the beach, such as sand, waves, or a relaxed atmosphere. Full definition
I just really wanted to go with a neutral and kind of beachy look for Fall. (tatertotsandjello.com)
When it came time to finally build their new home, their aim was to fuse the Hawaiian beachy feel with the Hamptons waterfront classic architecture and design. (houseofturquoise.com)