Long beach for a walk, there are often big and strong waves so swimming is restricted here. On this beach you can visit Koggala Sea Turtle Farm & Hatchery.
Surf 'n' Turf https://www.google.com/maps/place/Surf+'n'+Turf+-+Koggala/@5.989946,80.3203289,18z/data=!3m1!4b1!4m5!3m4!1s0x3ae16d29d4ee577d:0x94302fd49dfebc33!8m2!3d5.989946!4d80.321044