Jökulsárlón (glacier lagoon) is located on the south coast of Iceland, approximately 4.5 hours away from downtown Reykjavík. It is definitely worth the drive as there are many sights to see along the way.
Must see in Iceland if you have the time to travel there. Seeing the icebergs float in the clear blue water is something else.
This is of course a long ride from the cabin at 4,5 hours each way but it is doable and a truly breathtaking thing to see. You will need to plan on leaving really early in the morning and coming back home in the evening. Having at least an hour there is a must but there are a few stops along the way…