Australia has over 680 National Parks, which provides a lot of places to visit. Scouts of all ages can have fun combining a visit to a new National Parks with Amateur Radio activities.
A popular activity for Amateur Radio Operators is to take their equipment portable into a new National Park, set up the portable station and make radio contacts with other like-minded people.
See https://www.wwffaustralia.com/ for lots of detail.
While you do need an amateur radio license to transmit, logs can be submitted by just receiving the signals from other people’s transmission. This takes a little research and practice but it is good fun once you get it right.
A number of Awards are available by logging your Amateur Radio activation of National Parks and if you are interested in walking up hills, Summits on the Air (SOTA) too. https://www.vk5pas.com/summits-on-the-air-sota.html or https://vkfaq.ampr.org/opersota.php
If you are interested in logging your contacts on an Android device (with a reasonably sized screen) we recommend Peter (VK3ZPF)’s VK-Portalogger app. See http://vk3zpf.com/vk-port-a-log
If you are interested in logging with an Apple device see Sue (VK5AYL)’s site http://vk5ayl.com
Have fun! – Philip VK3JNI