Grimsson arrived at the Jolly Grant airport at 11 am and went straight to a hotel on Rajpur Road where he will put up during his stay.
He left for Wadia Institute of Himalayan Geology in the afternoon to inaugurate and address an environment workshop there.
He is scheduled to meet Uttarakhand Governor Aziz Qureshi at the Raj Bhawan tomorrow when he will also attend a program at the famous Doon School.
Security has been beefed up with deployment of additional security personnel in view of the Iceland President's visit to the city, DIG Amit Sinha said.
Grimsson has been serving as President of Iceland since 1996. He was re-elected for a record fifth term in 2012.