The supervised kids' activities start at age 4. They have sessions called Wannabee...Artist, Cook, Indian and Farmer. My 4 year old loved these.
They also have kids' entertainment from their 'PPTV' entertainers. The only one that mine went to was the Bingo, and it was really well done.
You pretty much have to look after your own kids until they are ready to go off by themselves. There is plenty to do for the little ones. The pool has a children's area (a little castle with its own slides and fountains). There are plenty of playpens in the pool area for you to contain your children when you are taking a quick dip yourself. There is also a petting farm, large children's playground and safe beach in one area. There are lots of little playgrounds scattered around and an adventure playground for slightly older kids.
They have every combination of bike to hire - child seats on the back, babyseats on the front that you can put your carseat into, trailers, wagons, tandems, jogging buggies, bikes with stabilisers...
The cottages are very child friendly. They have a looseat, a cot, a playpen in the storage area, and this wasn't even a special Children's cottage.
The restaurants all have plenty of highchairs, children's boxes, crayons etc., and there are playareas while they are waiting for their food.