Trip Intention Form

Deep in the throes of planning a trip to SA in March - a lot of sea kayaking but also some walking in the Flinders Ranges (mostly).
Does anyone know if it still necessary to fill in a trip intention form? I can't find anything mentioning that on any of the SA National Park websites.
Thanks,
Sandy
Does anyone know if it still necessary to fill in a trip intention form? I can't find anything mentioning that on any of the SA National Park websites.
Thanks,
Sandy