Those interested in taking part in this year's Parish Walk only have until the end of the month to claim a discount.
To get £5 off your entry - you have to be a Manx Telecom mobile customer - and enter before Jan 31.
It means people can sign up for the 85-mile course for £35.
From February 1, all entrants will pay £40, which will increase to £50 from April 1.
This year's event will kick off on Saturday, June 24 - with the closing date for all entries at midnight on May 7.
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