Kumano Kodo on You Tube
The Kumano Kodo Pilgrimage Trail with Giaan Rooney
On self-guided walking tours you need to be reasonably fit and carry the correct gear.
The walks are not technically difficult and are mostly on village paths and forested trails which are generally well-maintained and well-signposted.
An opportunity to stay in small country inns with local hosts and immerse yourself with the Japanese hospitality will leave you with very fond memories.