You can see from zaccy's posted video that there is a big drop-off at the RWY 06 end as well, the approach end here - this city is right on the ocean and they build the airport on a precipitous ridge - go figure..
Here's a
link to a terrain map of the area around the airport. The gradations in altitude are set at 20m, so about 100 ft steep drop to the river valley below.