A free diver goes deep at Kilsby sinkhole, part of a vast groundwater network in the limestone crust that straddles the border between South Australia and Victoria.
Photograph: Brook Mitchell/The Guardian
If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.social/users/appassionato/statuses/115794349943098115 on your instance and quote it. (Note that quoting is not supported in Mastodon.)
