Find out how fun this world-wide treasure hunt game can be. Shane McKenzie, AKA “Dr. House” has been geocaching for about 7 years and has over 11,000 finds. He will be here to give you background on the game and Geocaching.com website, talk about different cache types, GPS usage and get you started. Then find the Pelham Library’s geocache. Wed., June 11 at 11 a.m. $3. Please register ahead.