This text is fine, but reads formally, so a little unnatural given the content. A more natural version could be:
I'm planning on visiting my boyfriend who lives in S., BC and going skiing with him there. I'm also gonna visit the tourist attractions (or better: sites) in H.G., because I'm really into nature. He gave me a trip as a birthday present, and seeing as this is where he, his friends, and his family live, I am more interested in going there, as I will only be there for a short while.