The book's illustrations were done by Jessica Ducre-Hughes, who is also from Rotorua.
Mitch says obesity, mental health and heart disease are all major problems in New Zealand.
"Prevention is better than a cure, so it's great if we can target people at a younger age."
The book has been in the pipeline since 2013 and Mitch still cannot believe it is published.
It has been nominated for Innovation of the Year at the New Zealand Fitness Awards in November.
Mitch says another book is in the works, to be based in Rotorua, and he hopes to have it out by the end of the year.
Mitch says with the likes of the Redwoods, lakes and the Lakefront, Rotorua has plenty of resources to provide health and fitness.
Safari Fitness Wild New Zealand is available from McLeods Booksellers.