The Dyer Prince Road 631 boat ramp in Eastham, Massachusetts is a popular access point for boaters and anglers looking to explore the surrounding waterways. According to the latest available information, this ramp is a single-lane concrete ramp that provides access to Town Cove, a large body of water located on the eastern side of Cape Cod.

The boat ramp is approximately 20 feet wide, which is wide enough to accommodate most small to medium-sized boats. It also features a small parking area that can accommodate up to 10 vehicles, making it a convenient launching point for local boaters and visitors alike.

As far as what kind of craft are permitted on the water, Town Cove is generally suitable for small to medium-sized boats, including motorboats, sailboats, and kayaks. However, it's worth noting that the cove can get quite crowded during peak season, so boaters should exercise caution and be mindful of other vessels in the area.

Overall, the Dyer Prince Road 631 boat ramp is a popular and convenient access point for boaters looking to explore the beautiful waterways of Eastham, Massachusetts.