(LONDON) — An English policeman wearing a gorilla costume while crawling the London Marathon has finally finished the race, almost a week after starting. Metropolitan Police officer Tom Harrison, who goes by the name “Mr. Gorilla,” raised a reported 26,000 pounds ($33,650) for the Gorilla Organisation, which is dedicated to conserving gorillas in countries including Rwanda and Uganda. The 41-year-old Londoner started the 26.2-mile (42.2-kilometer) route last Sunday and crossed the finish line on Saturday. Harrison slept at friends’ houses in the evenings after completing around 10 to 12 hours and 4.5 miles per day.