If you’re out of the country for a full tax year then you get away scott free, but it doesnt sound like you will so you don’t need to worry about the rules about being in/out of the UK, but you will still have involvement with the HMRC. Tax years run April-April, so you’d need to stay till May 2016 to do that.
Some countries have tax equeivelance treaties with the UK which mean you only pay the local tax, I’d be supprised if Cannada isn’t one of them, the rules are mostly setup to catch people working in tax havens but still ‘living’ in the UK, not to catch travelers with bar/hotel jobs in resorts.