The Golden Circle Day Tour is always a classic, but adding snorkeling in Silfra is something of an adventure! https://www.goldencircledaytours.is/golden-circle-snorkelling

3. The journey begins at Silfra with a
fantastic snorkeling adventure.
The trek through the
southernmost region of Iceland.
Thingvellir National Park is home
to the Silfra fissure. Thingvellir is
situated in a rift valley where the
tectonic plates of Europe and
North America collide.

7. The exact location where you will
dive in and see what TripAdvisor
has ranked as one of the Top5
experiences in the world. You will
continue touring the Golden Circle
famous sights after thawing up
with warm drinks. Gullfoss
Waterfall, often known as the
Golden Waterfall, is a short drive
away.

10. Gullfoss is also the site of one of
Iceland's most well-known
environmental protests. We end
the day by stopping by the iconic
exploding Geysir hot spring. It is
also known as Strokkur, and it
erupts every 6-10 minutes. So
make sure you have your camera
ready.