I'm not sure where you are starting from or how far you want to ride but you could take the A train to 179thSt and ride across the GWB and follow bike Rt 9 to Nyack, about 40 miles round trip. From NYack continue up Broadway to Nyack Beach State park where you can hit the path to Haverstraw. The path is crushed stone, pretty flat and runs along the river. It might be narrow in spots where it has been washed out by storms. If going all the way into Haverstraw for lunch you're looking at around 60 miles RT, and there are a couple of steep hills to deal with on 9W
Originally Posted by
PmarcX3
Thank You for suggestions. I checked already ale ill have eye on it for sure.
If
Blue MT is like you described im thinking about Hook Mountain. The trick is i can't get there with any public transportation. I have to take train to Nanuet and from there cycling 1 hr.
What im thinking after 1 hr ill go to Haverstraw, take a break for drink and eat ( because i see there some places to eat/drink ) 
and from there straight down through State park.
What do you think about this trip? Have anyone been there ? Is Hook Mountain/Nyack Beach Bikeway good to cycle ? On the map loks like with amazing views