The Griffy Lake boathouse is open on weekends only in April and September, and daily May through October. 

The Griffy Lake boat ramp remains open for private watercraft launching. Boat motors are limited to electric trolling motors only.

Scenic woodlands teeming with wild flora and fauna surround the 109-acre Griffy Lake at this 1,200 acre nature preserve. Swimming is prohibited. The Indiana Department of Natural Resources has stocked the lake with bluegill, redear sunfish, largemouth bass, channel catfish, and crappie. A valid Indiana fishing license is required for fishing at Griffy Lake.

Griffy Lake Rules & Regulations

1. NO SWIMMING.
2. No persons may abandon any watercraft at any time. Electric trolling motors can be used on the Lake. Gas powered motors may not be used but may remain on boats as long as the motor is not started.
3. One (1) U.S. Coast Guard approved personal flotation device (PFD) must be accessible to each occupant of a watercraft. Minors, age 12 and under, must wear Coast Guard approved PFDs at all times.
4. While stand-up paddleboarding, each person must wear an ankle leash.
5. Minors, age 14 and under, wishing to use any vessel without adult supervision, must have written permission signed by a parent or legal guardian.
6. No watercraft shall be operated within 200 feet of the dam or east of the buoys located near the boat ramp.
7. Boat mooring is prohibited on any shoreline.
8. No persons shall operate any watercraft which is loaded with passengers or cargo beyond the manufacturer's recommended carrying capacity.
9. No watercraft shall be operated or used in such a manner so as to create a nuisance or disrupt the safety of others.
10. All watercraft must use the launch facilities near the Boathouse on N. Headley Rd.
11. No litter shall be deposited in the lake or on the shoreline.
12. It is illegal to release any live fish (native or non-native) into any public waters without a stocking permit from the Indiana Dept. of Natural Resources.
13. Adults (18+) are required to have a valid Indiana fishing license to fish at Griffy Lake.
14. Ice fishing and ice skating are not prohibited on Griffy Lake, however ice conditions vary and can be hazardous. The City of Bloomington assumes no responsibility for accidents resulting from individuals venturing onto the ice.
15. All rented watercraft and items must be returned within specified rental time. Failure to comply may result in a $20 late fee.
16. Any rented items or watercraft that are lost, stolen, or damaged will be subject to a $50 replacement fee.