Variety is the spice of life.
Each trail should normally include a little of everything - a little shiggy, open country, a little bush, maybe a stream and level paths. It could also include a hill, but not every hill within a five km. radius... One good hill is quite sufficient. Any fool can knacker the hounds, taking them over every hill in sight. It takes good recceing to include one good hill only. We are not a mountaineering club any more than we are a serious running club. (my italics!)
A trail should be about a minimum of 7 km to a maximum of 12 km, depending on the terrain covered. As a rough guide, if it takes two hours to walk the final trail, then it should take the average "hound" an hour to run it. ……….
A good trail ............. should have some bits where you have to crawl, walk, clamber, wade etc. but it will also have parts where you can just run without worrying where you put your foot next. Hills are good in moderation, so are rivers and railways, but too much is as bad as none.
So, I don't know if I'll have the energy for "a minimum of 7 km to a maximum of 12 km" (Nyaarghh!! What am I saying?!), but the weather's started to cool down, and I want to be out of doors. More: come the spring, I want to be fit enough to go walking in the mountains, and cover some ground. I've got a thing about glacier-sculpted landscapes, and I'm still promising myself that I'll go back to Peñalara and walk to the lovely Laguna de los Pájaros. Just as soon as I've built up the stamina to be able to walk back again!)
So, come this Sunday - or next Sunday, if I really can't move this week - if I run a bit, walk a bit, run a bit, I'm sure I can do 7-12km with the rest of the MH3 looney tunes. And then afterwards, there's a menu del día. Can't be bad.