Batemans Bay Marine Rescue volunteers were on alert at the weekend, May 16-17, as COVID-19 restrictions eased across the state.
Marine Rescue said 59 vessels logged on over the weekend in the area, a big jump from the quiet weekends since the start of the COVID-19 outbreak.
The skippers of two boats called for assistance on Sunday, with mechanical failure.
Just before 8am, volunteers rescued four people on a17 ft runabout offshore from Tomakin, acting regional operations manager Bruce Mitchell said.
Volunteers Michael Syrek, John Clement and Peter Poole headed out on their BM30 Marine Rescue vessel, with David and Andrew Murn in the radio room.
Instead of returning to Tomakin, tide conditions meant the team towed the vessel to the Hanging Rock ramp, arriving just after 11am.
The skipper of a 20 ft cuddy-cabin vessel called for help late afternoon on Sunday near Snapper Island, Mr Mitchell said.
A Marine Rescue crew on the BM20 was dispatched, with volunteers David Murn and Peter Johnson, and communications coverage provided by Peter Varkulevicius.
The vessel was returned to the Hanging Rock ramp just on sunset.
Mr Mitchell said to stay safe by staying at home.
However, if fishers chose to head out on the water, log on and off with Marine Rescue NSW on VHF Channel 16 or the free MarineRescue App.
In an emergency, call for help 24/7 on VHF Ch 16 or dial Triple Zero (000).