This is one of the eroded sides of the penninsula/island bits where a lot of the fishing boats moor. There's a zig-zag path made in the side of the cliff which can sort of be made out here - a rope is anchored up to help people climb up. In the dry season, it's okay, but when it's raining this side becomes pretty impassable. I was told there are frequent accidents.
The riverside has been steadily redeveloped with the riverside people being pushed further and further away. There's a promenade road nearby which is packed at night, with two funfairs and a lot of the riverside kids work there at nights, selling snacks, balloons and so on. The really grim stuff tends to happen further away.