Cobb’s Quay Marina: Cobb’s Quay Marina at Hamworthy in Holes Bay lies in Poole Harbour, the world’s second largest natural harbour. It has a lively, seafaring atmosphere, and with 1090 berths it’s a favourite with yachtsmen and motor cruisers alike. The marina has first-class facilities, including a chandlery and convenience store. Cobb’s Quay is part of MDL Marinas, Europe’s leading marina group, which has over 100 marinas in its cruising network. Offering a rich portfolio of prime boating locations across the UK, France, Italy and Spain, MDL has the most comprehensive berthing package in the marketplace including fuel at cost, discounted boatyard services and complimentary super fast WiFi.