this region lies in the region of the Tropic of Capricorn latitude which takes in the coastal cities from south of Bundaberg northwards to include Gladstone and Rockhampton
it extends westward to the mining towns of Blackwater (coal), Emerald (sapphires), Mt Morgan and Moura and out to Longreach
The Tropic of Capricorn lies at 23d 26' 22“ (23.4394 degrees) south of the Equator and marks the most southerly latitude at which the sun can appear directly overhead at noon and includes the city of Rockhampton
Mt Hay gemstone tourist park is SW of Rockhampton and you can search for “thunder eggs”
Yeppoon is the coastal town closest to the Keppel Islands