Changi Beach.. squatter haven?

I was at Changi Village on Monday to register for a course at the PA Sea Sports Club when i decided to drop by the beach for a while. To my surprise, i saw all these tents pitched up all over the place and they looked as if they were staying put!

If it was a weekend, i would take it as normal but on a Monday?! Upon taking a closer look, i noticed that there were fishing nets and cages among the tents. So i figured they must be fishermen and their families. How convenient eh? No rent, utility bills, public toilets a minute's walk away..