Thingvellir National Park on our Golden Circle Platinum Tour. Photo by Emily Sillett. Þingvellir. Posted on January 30, 2022September 26, 2022 1440 × 960 Thingvellir National Park on our Golden Circle Platinum Tour. Photo by Emily Sillett. Þingvellir. Thingvellir National Park on our Golden Circle Platinum Tour. Photo by Emily Sillett. Þingvellir.