Gilboa Quarry BUSINESS Hours High-Season: (May 1 – October 15)Monday – Thursday: 9:00am to 5:00pmFriday: 9:00 am to 7:00 pmSaturday: 8:00 am to 7:00 pmSunday: 8:00 am to 5:00 pmMid-Season: (April 16 – 30 & October 16 – 31) Exact Mid-Season dates are subject to change, please contact us to confirm hours as Mid-Season approaches. Monday – Thursday: 9:00am to 12:00pm Friday – Sunday: 9:00am to 5:00pm Off-Season: (November 1 – April 15) Monday – Friday: CLOSED TO PUBLIC. Season Pass holders by appointment only. Saturday – Sunday: 9:00am to 5:00pm