There is a thriving LGBTI scene in Rotterdam.
The biggest event of the year is Rotterdam Pride, a three-day festival in late September. This includes a Pride walk, parties, seminars and other events. There are also usually LGBTI events on King's Day (27 April).
Many bars and clubs are found in the ‘gay triangle’ of the city, which is edged by Churchillplein, Westblaak, Mauritsweg and van Oldebarneveldtstraat, near the Eendrachtsplein metro station.
In summer, the LantarenVenster arthouse cinema presents a Gay & Lesbian Summer Film Festival, with LGBTI films shown every Tuesday night.
Gay Rotterdam (www.gayrotterdam.nl/en) is a useful resource.