Win an amazing vacation from NPF

What is more fun then a vacation on someone else? Check out this great chance to win a vacation from the National Park Foundation. There will be smaller weekly winners but the at grand prize is:

at the end of the summer NPF will select a grand prize winner who will receive a once-in-a-lifetime houseboat adventure in Glen Canyon National Recreation Area, spanning northern Arizona and southern Utah, provided by Lake Powell Resorts & Marinas!

So get entered by answering a simple question.... I love you guys so much I will even give you a hint to this weeks answer:

It has to do with Cape Cod! :) If you get it wrong it is not my fault!