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Ratios for Group Outings

To maximize the enjoyment and safety of all participants in our group outings, all children ages 17 and under must be accompanied on the water by adult(s) according to the following maximum child-to-adult and child-to-guide ratios. Additionally, all adult and kids groups must follow our participant-to-guide ratios.


Maximum Number of People and Boats per Guide/Instructor

The maximum number of people and boats that each guide/instructor can accompany on the water is shown below.

Adult Boats
(Ages 15+)
Kids’ Boats (Ages 8-12) Kids’ Boats (Ages 13-14)
Lake or River 12 people:1 guide
8 single kayaks:1 guide
6 double kayaks:1 guide
5 paddleboards:1 guide
8 kids:1 guide
5 single kayaks:1 guide
4 double kayaks:1 guide
4 paddleboards:1 guide
8 kids:1 guide
5 single kayaks:1 guide
5 double kayaks:1 guide
5 paddleboards:1 guide
Ocean 10 people:1 guide
5 boats:1 guide
10 people:1 guide
5 boats:1 guide
10 people:1 guide
5 boats:1 guide
  • An “Adult Boat” is any boat (canoe, kayak, etc.) with at least one adult age 15 and older.
  • Quantities shown are the maximum number of persons and boats that each guide may accompany.
  • Guides in Ten-Person Canoes cannot be responsible for participants in other boats.
  • If you do not wish to hire enough guides to cover the number of people or boats in your group, you may designate a portion of your group to be under the purview of the guide. The other members of your group may not remain in the vicinity of the guide. This option is not available on the ocean.
  • The above ratios apply only to groups hiring a guide/instructor.
Reservations Are Required for Groups
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Maximum Number of Kids per Adult for Unguided Groups

The maximum number of children and boats that each adult can accompany on the water is shown below.

 Kids Ages 14 & UnderKids Ages 15-17
Lake or River1 adult : 6 Kids
1 adult : 5 Kids boats.

1 adult : 8 Kids
1 adult : 8 Kids boats.

  • An "Adult Boat" is any boat (canoe, kayak, etc.) with at least one adult age 15 and older.
  • All children must be accompanied on the water by adults age 18 or older.
  • There must be at least 1 adult in every XL Tripper (five-person) Canoe.
Charles River Canoe & Kayak Operates in Cooperation with... Discover Newton Parks Logo Massachusetts Department of Conservation and Recreation Logo Kendall Square Logo City of Somerville, Massachusetts
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