Places to walk near the ocean in or close to boca that are handicap accessible?

My partner uses a wheelchair and we've found that the soft accessibility mats on the beaches are not practical as they are extremely difficult to push someone in a wheelchair on. And, once the mat ends you're on the sand which is equally difficult to push a standard wheelchair on. I'm looking for wooden boardwalks or paved paths that are near the ocean that we can go for walks. Any ideas?