Just got back from vacation in Lancaster, PA, and I have to say it is a must !. I loved it , had a great time with my 3yr old and husband . There is literally so much to do , I had no idea. First let me recommend Willow Valley resort. They have an indoor " waterpark" that is cute for smaller kids. It has a froggy slide and rainbow water sprinkler and palm tree sprinkler. They also have a big water slide for adults.  They have a  few indoor pools, an outdoor, great buffet food place, a bakery on site, they have a golf course, playground, barn, and corn maze on site as well. We went to Cherry Crest farm, which is a huge interactive corn maze, and plenty and I mean plenty of other activities to do as well. We also ate dinner with an amish family which was truly an amazing experience. We went to the Choo Choo Barn, my 3yr old got bored quickly , but my husband and I really thought it was fascinating. We also took a buggy ride which was fun. Then we stayed at a farm for a few days and my son had the chance to milk a cow, bottle fed a baby calf, and collect eggs. They made us a homemade, from scratch breakfast, and served us raw milk from a cow they had just milked two hours early and made us an egg casserole dish from the eggs they collected, and made us fresh handmade yogurt from the milk from the cows. It was a unforgettable trip and one I am already starting to plan for next spring!