As at many tourist sights, there are always people around who are trying to make a quick buck out of visitors. The areas around the Discoveries Monument and Jeronimos Monastery in Belem are no exceptions. I was stopped and asked numerous times if I wanted to buy cheap sunglasses. They were even stopping and asking people who were wearing sunglasses! These "salespeople" are pretty harmless and more of an annoyance than anything else.
The stairs that will take you to the top-platform of Belem-tower are just about half a meter wide and all tourists, stepping up or down will take the same spiral staircase and so they will have to manage somehow not to slip down when going at the inside part of the stairs. At least there is a side-part at a few places, where you could stand and wait for the others to pass by, while you are standing in a safe place.
Nevertheless the panorama-view is breathtaking from the upper platform of Belem-tower, so it is worth to go there as well !
The former prison in Belem-tower is worth seeing, BUT the hight of these rooms is less than 1,7 meters and the doors between them are even less that that, so be extra carefull, when steping down these vaults. It seemes that the size of the prison-cells and their low ceiling was part of the punishment.
This photo, taken from the top of the Tower of Belem looking east toward the main part of Lisbon, shows the promenade area along the bank of the Tejo River.
In the distance is the main port, with the 'Ponta 25 de Abril' suspension bridge across the River. Just in front of it is the large rectangular-looking Monument to the Discoveries. Closer still are some entrances to small harbours and also the green park area beside the Tower of Belem.
Just off the left of the photo is the major transportation corridor of the Avenida da India, comprised of a multi-lane highway and a railroad. The only way to easily reach this waterfront area on foot is to take one of two pedestrian walkways across the Avenida. As a result, if you want to return to the main part of Belem, you can't just go directly there. You have to enter it at one end or the other from the walkways and then continue along to where you are really going!
When we went to visit Belen, on a Sunday, it was very difficult parking the car. Near the Monastery no way, all full, cars parked everywhere.
So we have to park near the Padrao dos Descobrimentos on the other side of the highway and we went on feet to the other side through a subway.