I've been hiking in Spain a lot over recent years (2500 km last 3 years) and due to a recent spell of unemployment I have the opportunity to go do a mega hike from Seville to Santiago (via Ovieido ) approx. -1300 - 1400 km in early springtime. Now, as I'm just (barely) a c25k graduate, this will blow a big hole in my 10k dreams for early to mid 2018. So my question is how much of a set-back is a month off running (even tho walking/general fitness will improve). I've thought of taking my running gear with me but a 5k run after a 25km hike is not gonna happen most days,..