camping on the Cape in July - suggestions for family fun?

[Jim in CT]

3 years ago, we rented a house in Truro for a week, my first and only time on the cape. Many here gave us some great suggestions that made it a lot more fun than it otherwise wouod have been.

we are going back this summer, unfortunately, in July, from July 6 - July 13. We will be camping in Eastham, me, the wife, 3 boys (ages 8, 5, 4).

Suggestions for family fun, restaurants, things to do, tourist traps to avoid, etc?

Hoping to fish with Capt Rich from Nelsons, we fished with him 3 years ago and loved it.

Hoping to do a 2 hour lobsterboat tour with a lobsterman, watch him pull his traps, kids loved that.

Kids loved first encounter beach at low tide, a magical place.

We will ride bikes on the bike path.

Any good lakes to swim in around there? Good restaurants? we loved something called Savory, I think, in Truro, most stuff cooked over a wood oven, unbelievable food.

Any suggestions appreciated.