Climbing to the Poas Volcano, I turned off the main, busy, road and took side one that was much shorter and quiet.
In Costa Rica that usually means dirt road with higher inclines.
On my surprise, this one was newly paved but inclines topped any road that I rode in my life.
I managed to ride up to this section and then you see the sign, only 4x4 vehicles.
Nothing new, I just ignored it.
That is when suffer festival begins.
I could barely walk the bike, incline is 20-27% all the way to the junction with the main road. Took me an hour to push it up.
If you are not fan of pushing, pick the main road which has manageable hills.
Happy trails!