25 things to do in Boston for under $25

12. Kayak the Mystic River As the rivers around Boston warm up this season, grab your paddle and take to the waterways. Looking to navigate the Mystic? The Boston Sea Kayak Club suggests launching your kayak at Chelsea's O'Malley Park, Charlestown's Schraffts Boat Ramp, or Somerville's Amelia Earhart Dam. While hitting the water won't cost you, Kayak Club memberships are $10 for individuals and $15 for families.

12. Kayak the Mystic River

As the rivers around Boston warm up this season, grab your paddle and take to the waterways. Looking to navigate the Mystic? The Boston Sea Kayak Club suggests launching your kayak at Chelsea's O'Malley Park, Charlestown's Schraffts Boat Ramp, or Somerville's Amelia Earhart Dam. While hitting the water won't cost you, Kayak Club memberships are $10 for individuals and $15 for families.

(Stan Grossfeld/Globe Staff)