Lying along Zimbabwe's northern border with Zambia is the inspiring Lake Kariba, stretching 220 km in length and up to 40 km in breadth at its widest point. There are multiple operators offering full-board and self-catering house boat-based safaris on the lake. Staying on a houseboat on Lake Kariba with a family or group of friends is one of life's must do's. During the days one can head out fishing for the prized Tigerfish or local catfish and bream species. With the Matusadona National Park and other protected areas situated on the Lake's shores, boat-based game-viewing can be rewarding and one has the chance of viewing the Big 5 (although leopard and Black Rhino are seldom seen from the water's edge). Sipping sundowners as large herds of elephant and buffalo come down to drink with hippos around you will ensure you feel totally detached from the 'modern' world.