This is a legal profession in Amsterdam and many prostitutes belong to a union.

Known as 'De Wallen' (the quays) in Dutch, because the canals were once part of the city defenses (walls and moats).

Prostitution itself is limited to certain streets, mainly side streets and alleys, but the district is considered to include the canals, and some adjoining streets (such as Warmoesstraat and Zeedijk).

The whole area has a heavy police presence, and many security cameras.

Nevertheless it is still a residential district and has many bars and restaurants, and also includes historic buildings and museums — this is the oldest part of the city.

Transexual prostitutes are often from Brazil, Venezuela and other South American countries.

There are also windows where are two girls working if you're into having a threesome.

Some of the international escorts also travel to Amsterdam and usually they will take clients at hotels in the Amsterdam centre, near Red-light district.

In the red-light district of Amsterdam you’ll see scores of working girls flirting with people from behind their red-light windows.

Price is usually a double comparing to having sex with just one girl.