Pension Arcadas is a small brothel located on Calle 2 near the northeast corner of the intersection with Avenida 10. It is directly to the right of the entrance to the Arcadas night club and apparently has some kind of relationship with it, although I don't know if the same women work between them. Google map coordinates are 9.929983,-84.080223.

They are open Mon-Sun from 10am-8pm. There does seem to be a small window of overlap since the club opens at 7pm, but I've also heard you might have trouble finding many women working at that time.

I was here on a Tuesday last month and saw four women, one of which I would have considered for the low price of 10k colones for 30 minutes, but I passed.

Pension Arcadas is mentioned in 2013/06 MrMeaner - Whirlwind Brothel Visit in San Jose