I think this may be the route that the girls took from the CCTV to the lake. It doesn't include the route from the beginning of Arbutus (where S. Evans turns into Arbutus) to where the bikes were found because Google maps just wasn't cooperating with what I wanted to do. I think the girls could have headed N from the corner at Brovan onto River Forest Rd., then R onto Lafayette Rd. (or possibly cut through parkings lots there) and S onto S. Evans Rd. This would take them to right by First Security State Bank. I think they may have then gone S until they got to Morrell Ave. where they then possibly took a L to Evansdale Nature Trail. I think they could have possibly continued down the trail until they got to Gilbert where they then turned back to the W to Lake Avenue. This would put them at the same corner as the skateboard park and then on down to Mr. C's road. They could have then traveled down Lake Ave. to S. Evans/Arbutus.
I am basing this on several things; the CCTV, a
rumor that I've read that they were seen by an employee at Fareway Grocery (which makes sense to me... wasn't LE requesting surveillance from First Security State Bank?) whom they asked where the bike trail was at (and assuming they then went to the bike trail from the grocery), Mr. C's statement that he saw them on his road, and the spot that is nearest to where their bikes found that I could get Google to map for me.
http://goo.gl/maps/IhnpT
This map indicates a length of 1.9 miles and 10 minutes for the biking time.
As I said, it is
partly based on rumor (from one of the FB pages that have been set up for people to keep up with the case & help find the girls), so take it for what it's worth. Also, based on me thinking that Mr. C was correct about seeing them on his road, though I have to admit I'm beginning to have doubts about that myself.