Following pickup from your centrally located Reykjavik hotel, board a comfortable 4x4 tour vehicle, specially equipped to handle the rugged Icelandic terrain. Head for your first stop in the Golden Circle, listening to a short orientation on the way. Your private tour ensures personalized attention and a flexible itinerary, so let your guide know if there's anything in particular you'd like to see.
Arrive at Þingvellir (Thingvellir) National Park, where the oldest democratic parliament took place over a millennium ago. Picture what Viking life was like as your tour guide fills in the details of their culture and history. Many crucial historical events in Icelandic history took place at this UNESCO World Heritage Site. Visit the rift between the Eurasian and North American tectonic plates, widening slowly, in one part of the park.
Continue to Geysir, an active geothermal area where you'll view bright blue sulfur-loving algae, steam vents, hot springs and gushing geysers. The Strokkur geysir erupts roughly every 5 minutes, so keep your camera at the ready to document the action.
Head for Gullfoss waterfall, known as the queen of all Icelandic waterfalls, which tumbles from a dramatic height into a deep gorge. After exploring the falls from every angle, stop in the Gullfoss Café for a coffee break. Your next waterfall stop is at Faxi for a few photos, then head on to Fridheimar, an organic greenhouse cultivation center that grows produce with the aid of geothermal power.
The day's final stop is the 3,000-year-old Kerið; you can opt to walk into the crater for a minimal additional fee.
End your tour with drop-off back at your Reykjavik hotel.