The First Drop, Wentworth Street, Berlin Wall and The Washing Machine will have your heart racing as you race down the whitewater rapids of the Mersey River. No experience is necessary to have a blast. The rapids are graded 2-3, the river is quite swift so there is little paddling, and an experienced rafting guide accompanies groups of six. Long john wetsuits, a safety and rafting briefing, and even buckets for water fights are included.