Five Things You Need to Know Today: April 23

1. Parks & Recreation. The Parks & Recreation Commission will meet tonight at 7 p.m. in room 209 at . The Commission will discuss a number of items, including a vote on whether to hold a public hearing on a 'swim at your own risk policy' at Crystal Lake. A walk was recently held at Crystal Lake with a number of residents . 

2. School Committee. The School Committee will meet tonight at 7:30 p.m. at the . To view the agenda for tonight's meeting, check out the .pdf to the right. 

3. Go Tigers! The boys' varsity tennis team will face Brookline High in a home match this afternoon at 4 p.m. 

4. Author talk. will host Kevin Barry, author of City of Bohane, and Morgan Callan Rogers, author of Red Ruby Heart in a Cold Blue Sea tonight at 7 p.m.

5. Mass Audubon's Photo Contest. Mass Audubon opened up its Third Annual Photo Contest on Mon. April 2, Picture This: Your Great Outdoors. Photographers of all ages and skill levels are invited to enter the contests, which will accept submissions until Sept. 30. The Grand Prize winner will be awarded a $250 gift card good for Mass Audubon programs and events and for gift shop purchases at Mass Audubon’s statewide network of wildlife sanctuaries. Winners in specific categories will receive $100 gift cards. To submit photos and view the complete rules, visit: www.massaudubon.org/picturethis.