Mountain Lake ECFE FIELD TRIP Swimming at Lake Crystal Area Recreation Center Wed., March 24 $4 per person Bus loads at ECFE building at 8:30 a.m. and returns about 12:30 p.m. Facility has a zero-depth wading pool that includes a slide and floating shapes. Please register on our Facebook page by Fri., March 19. Bring a sack lunch. Mountain Lake ECFE FIELD TRIP Swimming at Lake Crystal Area Recreation Center Wed., March 24 $4 per person Bus loads at ECFE building at 8:30 a.m. and returns about 12:30 p.m. Facility has a zero-depth wading pool that includes a slide and floating shapes. Please register on our Facebook page by Fri., March 19. Bring a sack lunch.