The Northern Rockhole is seasonal waterfall, however it flows most of the year round. The boat ferry will take you to the head of the trail and you are required to walk 4kms (each way) to the Waterfall. The Northern Rockhole is also the first stop along the Jatbula Trail. Day Use (if you do not have an approved Permit to undertake the Jatbula Trail) is to the Northern Rockhole only. Swimming is only permitted when the Rockhole has been opened by Parks and Wildlife