There are plenty of lesiure activities in and around Sotogrande apart from golf, tennis and watersports.
Why not go for a ride - there is an excellent equestrian centre with riding school in Sotogrande.
Sotogrande Riding Centre - 609-548840
Cycling is also a great way to get around the place and with most of the roads in Sotogrande having a cycle lane and restricted speed limits, this is a safe way for children to get around the estate.
The surrounding countryside is also wonderful for walking.