Loading view. There are no upcoming events. There are no upcoming events. Umpherston Sinkhole (Cenote) Events Venues Umpherston Sinkhole (Cenote) Jubilee Highway East Mount Gambier, South Australia 5290 Australia Get Directions Events at this venue Today Upcoming Upcoming Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file