Admiral Grundy is a retired admiral who is a friend of Mr. Gruber. He currently lives in a village in France, and fishes for mackarel in the sea in a boat that he has owned for 50 years. He uses sea dialect, saying things such as "Tie it up". Phrases like those caused Paddington to misintrepret the phrases, which caused Admiral Grundy, Mr. Gruber, and Paddington to temporarily get stranded on an island. However, the Admiral and his visitors eventually got off the island. He is experienced as a fisherman and other outdoorsman skills.