Foreign yacht owners in the path of the Pacific Cyclone Season are unable to seek shelter in New Zealand or Australia, with borders closed due to Covid-19.
Cyclone Yasa is already hovering in the waters between Fiji and Vanuatu, held in place by a high pressure system in the Tasman Sea.
It's likely to be a category four storm by the team it reaches close to Fiji's main islands on Thursday.
A second cyclone, Zazu, is unleashing heavy rain on northern Tonga.
Head of Fiji's Port Denarau Marina Cynthia Rasch says the marina is now full with more than 40 foreign yachts.
