Bouldering + internship

Hello my name is Yorrick.  I am a boulerer and i am studying tourism and hospitality in the Netherlands. For my school i have to follow an intership for 20 weeks from march/april til july/august. I am looking for a place where i could follow an intership and where i can boulder in an outdoor area. Does any one know a good bouldering spot close to a big city where i maybe could combine this?  I am looking for a spot in the US, other countries are optional. Thank you!