I live close by Eaton Cyn in Altadena and the water is flowing hard and fast at this time so now would not be a good time to try Azuza Cyn Try after this weekend and yes you do have to cross water to gain entry. I did it myself in my 2016 stock Trail Premium(with the crappy tires) and it was very capable. I have since gotten Wildpeak AT3s! Your vehicle is extremely capable as is, so before you start with the ridiculous "mods" and add ons, use it,play with it and see what it and you can do and then make informed decisions.