Tennis sounds great!! See if you can find a friend interested in playing with you and start that up! Who know, maybe H might get interested in it again if he sees you enjoying that again!
White water rafting is SOO much fun! We tried it a few years back for the first time and went again last summer. We could do it more often on our own, but chose the easy way and let others organize: we tagged along with a group from my work both times.
