May 07, 2021 11:09 AM EDT SYDNEY, AUSTRALIA - FEBRUARY 24: A tiger snake is seen on display at Sydney Zoo on February 24, 2020 in Sydney, Australia. Sydney Zoo, located at Bungarribee Park in Western Sydney, is the first new zoo to be built in Sydney in more than 100 years. The Zoo opened to the public on 7 December 2019. (Photo : Photo by Mark Kolbe/Getty Images) Here are two interesting facts about tiger snakes. Firstly, they are one of the most venomous snakes in the Australian bush. Secondly, they can swim. One big tiger snake, one small boat Mr. Thatcher was about 11 km away from the shores of Lake Wellington when he discovered the reptilian stowaway peeking out from one of the corners of his little vessel. It was about a third of the boat's length, leaving Thatcher with very little room to avoid.