Chatham is a charming town located on Cape Cod in Massachusetts, known for its picturesque landscapes, historic architecture, and coastal activities. Here are some things to do in Chatham:

1. Chatham Lighthouse and Beach: The iconic Chatham Lighthouse overlooks the ocean and offers stunning views of the coastline. The adjacent Lighthouse Beach is perfect for a relaxing day by the water.

2. Main Street Shopping: Explore the quaint Main Street lined with shops, boutiques, art galleries, and restaurants. It's a great place to find unique souvenirs and gifts.

3. Chatham Fish Pier: Visit the Chatham Fish Pier to watch local fishermen bring in their daily catches. You can also see seals frolicking in the water nearby.

4. Chatham Bars Inn: This historic luxury resort offers beautiful grounds, fine dining, and access to a private beach. Even if you're not staying there, you can enjoy a meal or a spa treatment.

5. Monomoy National Wildlife Refuge: Take a boat tour to Monomoy Island, home to various bird species and seals. The refuge also offers guided walks and educational programs.

6. Chatham Orpheum Theater: Catch a movie at this historic movie theater that has been restored to its original 1916 design, combining vintage charm with modern amenities.

7. Chatham A's Baseball: If you're visiting during the summer, consider watching a Cape Cod Baseball League game featuring the Chatham Anglers at Veterans Field.

8. Chatham Railroad Museum: Learn about the history of the railroad on Cape Cod and its impact on the region's development.

9. Kayaking and Canoeing: Explore the scenic waterways around Chatham by renting a kayak or canoe. You can paddle through marshes, rivers, and even venture out to the ocean.

10. Chatham Maritime Days Festival: If you're visiting in June, don't miss this annual festival celebrating Chatham's maritime heritage with boat races, music, food, and more.

11. Chatham Shark Center: Learn about sharks and their conservation efforts through interactive exhibits and educational programs.

12. Art and Museum Scene: Chatham has several art galleries and museums that showcase local and regional artists. The Atwood House & Museum is a great place to learn about the town's history.

13. Chatham Band Concerts: Enjoy free outdoor band concerts at Kate Gould Park during the summer months.

14. Cape Cod Rail Trail: If you're into biking, consider riding along the Cape Cod Rail Trail, which stretches through various towns, including Chatham.

15. Chatham Candy Manor: Indulge your sweet tooth at this historic candy store known for its delectable chocolates and confections.

Remember that some activities might be seasonal, so it's a good idea to check ahead of time for availability and current schedules. Enjoy your time exploring Chatham and all the wonderful experiences it has to offer!