Roughly 230–300 km from Reykjavík and back, all on paved roads (Routes 36 → 365 → 37 → 35 → 1). About 3.5 hours of driving without stops; plan 6–8 hours with the three main sites, or a full day with detours. No 4WD needed. Driving clockwise (Gullfoss first) helps you run opposite the tour buses.
| Leg | Road | Distance / time | At the stop |
|---|---|---|---|
| Reykjavík → Þingvellir | 36 | ~49 km · ~45 min | 1–2 hrs: Almannagjá rift walk, Öxarárfoss, Hakið viewpoint. Parking 1,000 ISK (cars up to 5 seats), covers P1/P2/P5 all day. |
| Þingvellir → Geysir | 365 → 37 → 35 | ~60 km · ~50 min | 30–60 min: Strokkur erupts every 5–10 min. Entry free; parking 1,000 ISK via Parka app. Café, shop, fuel and toilets at Geysir Center. |
| Geysir → Gullfoss | 35 | ~10 km · ~10 min | 30–60 min: upper and lower viewing platforms. Entry and parking free. Café and toilets on site. |
| Gullfoss → Reykjavík | 35 → 1 | ~120 km · ~1 hr 45 min | Optional stops southbound: Faxi waterfall, Friðheimar, Flúðir (Secret Lagoon), Kerið crater (700 ISK), Selfoss. |
Þingvellir National Park: thingvellir.is · Þingvellir/Geysir parking payment: checkit.is, parka.is · Roads: road.is · Weather: en.vedur.is · Safety: safetravel.is · Kerið: kerid.is