Walked down to the shipwreck beach yesterday and planned my visit for low tide which is important for anyone wanting to get up close. The rough steep track down was ok as it was dry but could be dangerous if wet. The track is not on the map.
Our Nature Cruises and Dolphin Swimming experience depart from Akaroa which is only a 90 minute scenic drive from Christchurch. The Diamond Harbour and Quail Island ferry depart from Lyttelton in Christchurch.