Hello all, so up until I was about 15-16 i was heavy into biking (bmx jumps and some flatland) Then once I got a car I stopped biking. Now 10 years later my gf took me for an all day event for my birthday. it was 25 miles on a dirt trail(fairly flat), 3 mile hike up, then 8 miles of rafting(shes trying to kill me lol). That was about a month ago and since then I've been getting into biking again. Im using my dads old trek 820. Its good for now I suppose. My dilemma is i'm not sure what type of bike i should be looking to buy. There's many good bike trails by where i live, one in particular that I enjoy has a mix of paved roads, dirt trails, and some sand. One of my friends at work was telling me there is a 4x mile bike tour throughout the 5 boroughs in NY and I would like to do something like this as well. Should I just look into getting 2 separate bikes? A mountain bike and a road bike, or get a cyclocross? I have a 400-500 budget and do not mind getting used at all. I really do love biking and am glad I found it again.
Thanks in advance all