Rent a car or join a budget-friendly tour to explore Golden Circle highlights: Þingvellir National Park, Geysir Geothermal Area and Gullfoss waterfall. Be sure to wear sturdy footwear.
Head to Seljalandsfoss waterfall where you can walk behind the cascade. Nearby is Gljúfrabúi waterfall hidden in a canyon—an off-the-beaten-path experience. Both sites open all day, free to visit.
Travel to Skaftafell for hiking and glacier views. Take the Svartifoss waterfall trail to see the stunning basalt-columned falls (approximately 1.5h return).