gravelly, pebbly, shingly

from The Collaborative International Dictionary of English v.0.48

beachlike \beach"like`\ adj.
   having an extensive gently sloping area of sand or gravel; --
   of a shore or shoreline. Opposite of {cliffy}. [Narrower
   terms: {gravelly, pebbly, shingly}]

   Syn: beachy.
        [WordNet 1.5]