If the beaches in Cape Cod are like the beaches in Daytona, I wouldn't have a problem taking my motorhome on them. But if they are like Pismo in California, then no, I wouldn't take my motorhome on them. At Pismo as long as you stay down by the water you're fine the sand is good and hard. But you have to go up into the softer sand to camp and lots of people get stuck. Not to mention you get sand in everything. And there's some really nice RV parks with full hookups just a few hundred feet off the beach that are so much nicer. East coast beaches are a lot different than the west coast. It's generally a lot more level on the east coast and the waves aren't as big.