If you find a small island, far from a continent, and use your hoe (and tons of stone) to raise that land above storm tide, then plop workbenches/ torches/ etc to full coverage, and you are raid free. Raid mobs only spawn over land, and most cannot cross open water. The drakes can, but if your base is isolated enough they timeout before they can even reach you. If you are REALLY lucky you find an island that is half meadow and half plains so you can farm everything, safe from all the baddies.