We enjoyed staying in this cozy cottage. It is in South Chatham right next to Harwich. The cottage is well maintained by the owner and looks like it has been recently renovated. The management company is very responsive. The house has a nice layout (open kitchen with eating area, 2 bedrooms with queen bedrooms with 2 full baths that are spread out and a huge kids room with bunk beds). We enjoyed having the option to relax outside on the deck or head inside to the four seasons room when it got buggy. The window A/C units in the bedrooms were enough to keep the cottage cool.
There is a small beach at the end of Pleasant Street. It is within walking distance, but I would recommend bringing a wagon if you are going to walk there with your stuff. There are a few free parking spots here and also a couple of streets over at Forest Street. It is the bay side, so bring water shoes as it is rocky with lots of seashells and horseshoe crabs. There are other straighter shots to the beach, but many of the streets have private access to the beach and don't want you access the beach from their streets.
We rented bikes and biked around the different neighborhoods in the area. There is a bike path, but we did not feel comfortable biking on the main road or trying to cross over to route 137.
The house was well stocked with lots of plates, utensils, serving trays and bowls. They have nice beach chairs, umbrellas, beach toys and even a cooler that you can borrow. There is a shed where you could store bikes.
There is a not a lot of privacy between this house and the one behind them, but it did not bother us.
I would definitely recommend this house.