There aren't many long beaches along the Yorkshire coast; Sandsend, near Whitby is one; and Saltburn is another. A very long set of steps (about 200) down from the road at the top to the beach; or else you can take the funicular, if it's in use when you're there:
Once on the beach, there are miles of beautiful sands. We were there in the late afternoon, and misty light was glorious, with surfers, horse-riders and dog-walkers all out in force.