Sunnyside North Beach is a clothes-optional beach located at Mount Eliza, Port Philip Bay, in the State of Victoria, Australia. Sunnyside North is a sheltered, secluded beach on the eastern side of Port Phillip, near Mount Eliza.

It attracts many families and is a safe beach for swimming. There is a large grassed area to sunbathe and shady areas to sit south of the carpark, not in the clothes optional area. The beach is family-friendly, with a relaxed atmosphere which makes it a safe option for people looking for their first nudist experience.