Sea Level Designs Inc. Gifts & Home Decor Sea Level Designs Inc. Visit Website Request Info 34444 Coastal Hwy. South Bethany, DE 19930 (302) 539-4502 (302) 539-5788 (fax) About Map About Home accents, furnishings & gifts with that at the shore touch. What's Nearby? Distance: 5 10 15 20 25 50 mi.