Choosing the right lighting fixtures can greatly enhance the coastal nautical theme in your kitchen. Look for fixtures that are reminiscent of maritime elements. Install a pendant light shaped like a glass buoy or a lantern-style chandelier with a weathered finish. Consider adding a rope-wrapped table lamp on the countertop or a wall sconce with a nautical design. These lighting fixtures will not only provide functional lighting but also serve as decorative elements that reinforce the beachy atmosphere.