Mountain Biking: For serious MTB riders the whole area is mud and rockhoppers' heaven! The mountain (10 mins away ) is constantly used, abused and well tested. Tracks and runs range from beginner to intermediate and can easily accommodate daring professionals. Apart from walking this is the No1 activity in Sintra for sporting junkies! Casa do Leão-AL has a secure area for bike storage and bike hosing-down as well as a small workshop.
Road Cycling: Due to the mountain contours and quiet roads road cycling teams and enthusiasts are constantly teasing the roads and switchbacks. This seems as popular as mountain biking and the area easily boasts world-class training and touring environments. Hill climbs can easily last for miles with inclines reaching 20-25%
Hiking/Walking: Casa do Leão-AL is located right next to beautiful Sintra National Park with miles of trails. Walk in the hills, or down quiet roads and paths to the coast.
Sailing: Sailing is a major draw: Cascais marina often hosts major regattas. There are several places in the town from which you can hire dinghies, yachts and motor boats.
Surfing: Guincho and Carcavelos are both recognized as some of the best beaches in Europe for surfing, and both are within 20 minutes drive from Casa do Leão-AL.
Golf: Portugal is famous for its golf courses and within a few minutes drive there are several - most notably Quinta da Penha Longa - one of the best in the country.