Was really lucky with this one. The attraction is free between 10am and 2pm on Sundays. I arrived at 1.55pm. The walk along the river towards the Tower is very scenic and is an escape from the throngs in Belem. You cross a wooden bridge to get to it with the waves splashing. The tower allows great views of Lisbon and the surrounding areas. It is worth climbing the steep and narrow stairs to the top for the views. The traffic light system for allowing people up and down the steps is a little funky but necessary. Well worth the stroll.
If you own or manage Torre de Belem, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.