Briony Hume jumps on board the 'Spirit of the Coorong' - for a spot of lunch, a bit of bird watching and to see the place where the Mighty Murray finally meets the sea. Briony takes the 'Discovery Tour' a 4 and a half hour eco-tour on board the Spirit of the Coorong - a sleek purpose built boat. At the helm is Jock Veenstra - a human encyclopaedia when it comes to this unique area - he's been showing people around since the 60's. Best of all, on this cruise, you get to stop and explore the area on foot as well.