Another activity you can do while visiting Assateague is to go clamming. You have a lot more available to you if you search for a spot via kayak. That is exactly what we did.
I followed this group to search for clams. We went to a boat ramp area to launch from. It is ten dollars per car to put in your boats at Assateague Island State Boat Ramp. It is actually on the mainland before you cross over the Bridge to Assateague Island. This is one spot to put your kayaks in the water. There is ample parking in the lot. We went before sunset.
A location. with a sandy sea floor seemed best. Some felt around with their feet. Others swam under the water to feel with their hands. Adults mainly used rakes or clamming baskets.
I think the final total for this clamming trip was 130 clams or so. They soaked them in salt water then fresh from what I understand. Then they had a feast a few days later. Get out and enjoy nature and work for your food. It makes you enjoy it all the more.