As a paid lifeguard, Bradley works between 11am and 7pm Monday to Friday, between December 17 and February 1.
Volunteers work the weekends.
If a public holiday, such as Christmas Day or New Year's Day, falls on a weekday, he works it.
Working on Christmas Day was "not too bad''.
"You are around a good group of people. Coming down here is like hanging out with mates, which makes it a lot easier.''
Junior lifeguards regularly delivered food to those on patrol, which made working easier.
The weather dictated how busy they were, Bradley said.
A sunny day could result in an "intense'' day for lifeguards.
If people on the beach had been drinking alcohol before going for a swim, it could result in swimming outside the flags or "out of their depth''.
"When you're sober you know you are struggling and shouldn't be out that far, but when they're drunk they feel like they're invincible.''
St Kilda Surf Life Saving Club head lifeguard Conall Duncan said St Kilda Beach had become busier in recent years due to erosion at St Clair Beach.
He also experienced fomo but chose the job because of a need "to be on the beach, supporting his community.''
"It's not a job - it's a lifestyle.''