need advice !

Guys, i need tips for a trip with my friend to US, want to do some adventure sports, paddling, trekking, rafting and watching basketball matches (special in US). Suggest some best places to trek. I searched a lot on internet but not finding much on this, There are lots of sites offering packages for the same but i want to know more about weather, people, stay, culture, etc. i got few sites like -www(dot)microburbs(dot)com(dot)au/NSW/Sydney/City/City-of-Sydney/Sydney Still looking further for a better information about the region. Regards !