I'm a first time pilgrim planning a short trip starting in Ponferrada and ending in Santiago. I'm walking with two friends and we're all young/fit; do triathlons, trekked in India, etc. I think we could cheerfully tick away 30-35 km of easy walking in a day, but I'm not sure of the terrain and also don't want to rush/exhaust ourselves. What's a reasonable daily average to expect to complete each day? Also, I'm getting a lot of mixed reviews on whether we need to book spaces at the hostels along the way... what's the scoop? Thanks for all your help and suggestions!