You can camp by the sea again!
NParks website: "Campsites in NParks coastal parks (including Pulau Ubin) will reopen with effect from 20 January 2021."
"For parks, applications can be submitted via AXS from 13 January, 9am onwards. For Pulau Ubin, please apply via this form. Please observe the enhanced safe management measures, such as ensuring a 5 metre distance in between camping tents, and to keep the number of campers to 6 people per permit. Please check the NParks online noticeboard for the latest updates.
Here's a video of camping ettiquette by Ubin NParks