The silt jetties near Eagle Point are the second longest in the world, after those on the Mississippi. They are caused by deposits of silt made by the Mitchell river as it flooded, and results in a thin strip of land between 50m and 10m wide stretching right out into the lake. You can drive along them, just take the Eagle Point Road, and keep on going. There is a lookout at The Bluff, but the best experience is to drive or cycle right out along them.
Raymond Island hosts a population of some 300 koalas, and sightings along the 2 km Koala Trail are practically guaranteed. There is also a large variety of sea birds and wallabies. There is a waterfront walk/cycle path, and paths and roads which meander through the trees. The island is right next to Paynesville, only 4 min away by ferry. The ferry runs on a schedule from 7am to midnight daily, with continuous service in peak times and services every 20 min or so the rest of the time.