Residents of a Kulim Avenue home got an early morning wakeup call from a furry friend today when an injured fur seal began knocking on their window at 6am.

Gerald McDonnell and his wife were asleep in bed when they heard a tapping on the window of their Otumoetai home and opened the curtains to find a fur seal staring at them through the glass.

The adult seal, sporting an injured flipper, made its way from the Tauranga Harbour onto the deck of the house.

Gerald says the seal left a trail of blood due to an injury on the seal's flipper.

'I did hear it banging on the windows, I think it was looking at itself in the window of the house.

'Its left its seal of approval on the deck. We haven't had a seal up here before.”

A similar looking seal also with an injured flipper made an appearance at Waimarino Adventure Park on Monday when it climbed aboard one of the pedal boats on the Wairoa River.

Waimarino owner Blair Anderson says he has never seen anything like it in the last 30 years. The seal, nicknamed Charlie by Waimarino staff, hung out on the pontoon before heading back into the river.