Here's my stages:
Day 1: San Vicente de la Barquera - Cades
Day 2: Cades - Cabanes
Day 3: Cabanes - Espinama
Day 4: Espinama - Portilla de la Reina
Day 5: P de la R - Cremenes (too long)
Day 6: Cremenes - Gradefes
Day 7: Gradefes - Mansilla de las Mulas
Day 8: M de la M - Leon
Day 9: Leon - La Robla
Day 10: La Robla - Poladura
Day 11: Poladura - Llanos de Someron
Day 12: L de S - Pola de Lena
Day 13: Pola de Lena - Oviedo
I should say I am quite fit as I do a fair bit of trail running (as per my account name
), but recognise that these are challenging distances when you factor in carrying a backpack and the steep ascents/descents.
I was doing it alone. I hardly met a soul during the day on the Camino Lebaniego y Vadiniense (mainly if not all Spanish in the albergues); on the San Salvador, there were 11 of us (7 Spanish) doing similar stages so we met up at the albergues in the evening - certainly until Pola.
I would strongly recommend walking along the River Esla into Mansilla de las Mulas. Gronze says to turn right onto the N-625 road. But instead of crossing over the bridge to the road, you can follow the service road that hugs the river.
Please do let me know if you have any further questions and I'll try to help. It will be beautiful when you do it as the leaves are just starting to change colour. At one point around Cremenes, I could hear stags bellowing across the valleys - the start of the rutting season! I wish you a truly buen camino!