The actual co-ordinates will be revealed in the location completion messages as you complete the Adventure Lab.
Historic Colby Adventure Lab Bonus, takes you to another view of the old football field. Take care with little ones, if they fall in the water it isn't deep but it is a couple of feet below path level. For obvious reasons don't drop the cache! The cache is accessible by a wheelchair user, but they may need assistance to actually retrieve the logbook.
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