Prepared routes for walks and cycle rides are available in books, magazines (Trail, TGO, Country Walking, Walk, Triangle etc) from bookshops, libraries and other groups (top tip for non local/familiar destinations is to contact a group in that area, tell them the sort of distance/terrain you want, and they will often quickly suggest something). Our group and some of our members also have routes which can be borrowed or copied - just ask. The web also offers the following:
Why not make your own route from an OS map (available in bookshops, libraries and online)? OS maps vary in fidelity: 1:25k gives 4 times detail to 1:50k. Both are adequate, but use 1:25k if you are new or unsure. Or make your own A4 1:50k map here. This will produce 1/6 of an A4 page; put 6 blocks together to make an A4 page. Simply decide starting point, save block, move arrow twice in required direction to next block. Will need to decide whether 2 columns * 3 rows or vice versa. Repeat 5 times until 6 blocks saved. Open Word, select Page Setup Orientation (Landscape or profile), insert blocks in sequence, will need to increase page margins and/or reduce block sizes. Insert into plastic sleeve, fits in pocket, ideal for when weather dry (ink may run!).