Moved to Sydney - Searching exercise and YOPDs

Hi all, I have moved back to sydney are over 10 years in Peru.
I am looking for somewhere to train - Not interested in Boxing.
I have been doing in Gymnastics and I love that… part of me wants to learn to be a Ninja warrior like my PD Hero in the USA. I course I am starting from scratch.
I loose my capacity. quickly after 3 weeks travelling.