On 7 January 2025, a Swan River Seaplanes Cessna 208 Caravan 675 seaplane with seven people onboard returning to it's base in South Perth, Western Australia 19 miles (30 kilometers) east of Rottnest Island crashed during takeoff from Thomson Bay, Rottnest Island, Western Australia. The plane impacted the water with its front section, and the pilot and two passengers were killed, three other passengers survived with injuries and one remaining passenger was uninjured.

The aircraft involved in the accident was a nine year old Cessna 208 Caravan 675 seaplane operated by Swan River Seaplanes. Prior to the accident, the aircraft crashed in 2016, injuring 11 people. The aircraft was ferried to Western Australia from the Australian east coat just seven days before the accident.

On board the aircraft there were seven people, six passengers and one crew member. The six passengers were tourists, two Swiss, two Danes and two Australians. The pilot was a 34-year-old Australian, he was one of the three victims alongside two tourists, one from Switzerland and one from Denmark.

The aircraft crashed on takeoff from Thomson Bay in Rottnest Island, it was supposed to fly to South Perth. Videos of the accident show the aircraft banking to the right during takeoff and then hitting the water. There are unconfirmed reports that the plane hit an underwater rock at the entrance of the bay during takeoff, causing the crash.

After the crash, the survivors were rescued, and the 3 injured people in the crash were flown to a Perth hospital.

The Australian Transport Safety Bureau started an investigation on the accident. The aircraft's wreckage was pulled out of the water on the afternoon of January 7, and it will be taken to Perth for further investigation, and then transferred to a laboratory in Canberra. The investigators are also searching for electronic devices that were onboard the aircraft that could provide clues about the accident.

Swan River Seaplanes, the company operating the aircraft, said that they were "heartbroken" and "devastated" by the crash, and that they sent their condolences to the families of the victims. The Australian prime minister, Anthony Albanese expressed his deep sorrow for the crash and also sent condolences, as did the Western Australian premier Roger Cook.