April 28-May 6 K&K Spring Fishing Derby. Lake Pend Oreille Idaho Club holds its annual spring fishing contest, with prizes for adults, junior and youth divisions. This event marks the 71st year, offering more than $18,000 in cash and prizes. Entry fee is $50 adult, $20 junior (ages 14-17), and free for youth ages 0-13. Ticket outlets located at retailers all around Lake Pend Oreille; visit LPOIC.org for more information.