Towns · Suffolk County Things to do in Islip 1 spot worth leaving the house for · 1 free · 1 near the LIRR Outdoors Seatuck Environmental Center Islip FreeIndoor + outKids Coming up in Islip NOW Islip Farmers Market through Nov 21 · Islip · Saturdays 7am-noon, Islip Town Hall lot on Montauk Highway, through November 21 · free A 7am start means the serious shoppers and actual Long Island farmers set the tone here, not the latte crowd. Runs deep into November when most markets have packed it in.