There is plenty to go at on a Gravel Bike in that area! WA me on 0838918897 and I can share some GPX files and Garmin Courses with you. I will be there from 18th Dec for 3 weeks - plenty okes and groups to join but I have never had an issue solo and ridden very remote places, just be sure you have spares and capable of fixing mechanicals - some places have very poor cell signal (learnt the hard way)