Happening today is the commemorations of Navy Day in Setúbal. Since last 14th May till 20th you have an amazing exhibition of Naval force at Casa da Baía (open last weekend, with an amazing success) and on Largo José Afonso you have two simulators used by Navy for training.
The simulators are of the helicopter Lynx and ships. During this days, you can also make climbing at Largo José Afonso, scuba baptism and practise airsoft (category of paintball).
From 19th to 22th May, you can visit several naval units anchor on the Port of Setúbal and make a tour on fast boats intervention. Travel do Setúbal, it is a city of several events and activities.