****** The Series ******
A series of caches intended to be found by bike, please see OYB - Quebec & Goose Green : Peloton for details of the series, parking, refreshments etc.
****** The Rider ******
Philippe Thys was a Belgian cyclist and three times winner of the Tour de France in 1913, 1914 and 1920 and would have almost certainly won several more but for WWI.
****** The Cache ******
You're looking for a clip-lock box.