Help on exercise

help help , how do i get motivated to exercise i have knee problems so it hurts to walk .

trying swimming, its very relaxing, good exercise and easy on the joints

ALOHA MARC THANKS FOR THE ADVICE FIRST I’D HAVE TO LEARN HOW TO SWIM I LIVE 2 MILES FROM THE PACIFIC OCEAN I DON’T ENJOY THE WATER SO I’LL HAVE TO FIND SOMETHING ELSE ANY MORE IDEAS ALOHA JANET