Not just lightpacking — you can ride most days with no bags & bikepack between just 4 best locations to stay
The routes comprise:
• 2 circular from Marmaris,
• 1 from Marmaris to Datça (bikepack there and back with an overnight — or just take a taxi back),
• 2 variations of Marmaris—Köyceğiz,
• 2 loops around Köyceğiz,
• 1 from Köyceğiz to Fethiye,
• 2 loops in Fethiye (one of which in 2 variations),
• 1 from Fethiye to Kaş,
• 2 variations of a loop in Kaş.
So, you could count 14 — but excluding those variations that you would not ride both, there are 11 unique routes, most of which has been scouted in two different trips, and the rest thoroughly remotely researched.
The averages above are for the longest variations, so the mileage and elevation gain could easily be less.