Saying "pish" and "tush" to such mundane velocipedal virtuosity (it's just SO last-season, darling), fbb can't wait to join in with ...
But the publicity and the superb scenery make the bus ride up (and down) a worthy item on fbb's every expanding list of "omnibological things to do".
VTT = "Vélo(cipède) tout-terrain"
= bicycle all-terrain; i.e. mountain bike.
Pronounce it "Vay Tay Tay" (approximately).
We can now reveal (well, not now but tomorrow!) what trucker David stopped to photograph.
See also "F S = France Sévrier? [Episode 1]" (read again)
See also "F S = France Sévrier? [Episode 2]" (read again)