Head down to Blink Fitness West Islip from 11 a.m. to 1 p.m. saturday, where Astra and the members of the WBLI street team will be hanging out and giving away prizes.
While you're there, cheer on Astra as she bikes for an hour to help raise money for charity.
Those interested in joining the gym can sign up for $1, but that offer expires once the gym has its grand opening on Friday, September 28.