In uShaka Marine World there is plenty to do and you could easily spend a day there with children. The full ticket entitles you to the 'Wet 'n Wild' water slides, tubes and pool area - it's great fun to float around the whole park in a tube. The dolphin shows are the highlight but there are also seal shows, feeding times for penguins and an amazing aquarium in what looks like a shipwreck. My only criticism is that one cannot take a picnic in, not even a bottle of water, and this makes the day expensive when you have to buy drinks, lunch, icecreams etc., especially with children. The wet 'n wild waterpark gets very crowded in high season.