I visited this WHS in August 2014. I spent half a day here and although I thought that 4 WHS monasteries/convents in an area of about 200km was going to be too much, I was wrong. After Tomar, the monastery of Batalha turned out to be my favourite. I had bought the convenient combined ticket of Tomar+Batalha+Alcobaca from Tomar which not only meant that I saved 3 euros but more importantly I didn't have to wait in the queue. The church entrance is free but the combined ticket will allow you to visit the incredible cloister carved in the Manueline style. The church exterior is also over-the-top with plenty of unique gargoyles to gaze at. The highlight of my visit though were hidden neatly behind the church - the unfinished chapels (picture). The intricate carving is truly world class.