As others have said, it's a very easy walk to Beaches and Cream at the Beach Club resort - at least, it's a very easy walk to the Beach Club Resort, and then you need to find Beaches and Cream. We found it difficult to find the first time we were there.
We get to it by going into the lobby entrance (the entrance that faces Boardwalk Villas across the lake), then once inside, turn Left so you're facing the Cape May Cafe - then walk towards the Cafe, and turn left at the entrance of Cape May and walk all the way around it to your right (until you can't go any further.
Then go outside through the glass doors, and walk on the sidewalk closest to the hotel building - you'll find Beaches and Cream along that sidewalk, next to the arcade.
Hope this is helpful for you!!