Glenworth Valley Outdoor Adventures, 69 Cooks Road, Peats Ridge, NSW (20 min drive from Gosford), ☎ (02) 4375 1222, [7]. Glenworth Valley has many outdoor activities to participate in. Horse riding, kayaking, quad biking, and abseiling are the main activites, but others are offered. You can usually do up to two in a day, one in the morning and another in the afternoon.