Driving in Iceland requires caution due to unfamiliar road conditions like single-lane bridges and animals on the roads. Roads may change unexpectedly from paved to gravel, and mountain roads often require 4x4 vehicles. Reykjavik is the northernmost capital city known for its nightlife, culture, and nearby attractions like the Blue Lagoon geothermal spa. Renting a 4x4 vehicle allows you to explore scenic areas like Vatnajokull National Park, home to Iceland's tallest mountain and largest glacier. Grimsey Island is the only one crossed by the Arctic Circle where visitors can see the midnight sun. Iceland offers impressive sights throughout the summer prime tourism season.