That book is Up the Creek. This reviews comes from Briar's Reviews. A brief excerpt.
These wickedly smart kids (in good ole Canada), grab some canoes and decide to ride the waves in the creek. They get into some seriously funny mischief, getting lost along the way. But, don’t you worry! These boys are geniuses of getting into and out of trouble. Add in Canadian humour, play on words and a book full of pure friendship and you’ve got yourself a real winner!
You can read the full review here.
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