In 1933, the Japanese built a Tropic of Cancer landmark to the west of Ruisui Train Station (23°27′4.51″N). This marker became a significant site for visitors at the time. Later, in 1981, due to the expansion of the eastern railway line, it was demolished and relocated to Wuthu Terrace, where it was reconstructed. Interestingly, the new Tropic of Cancer landmark features an elegant design and beautiful scenery; it has since become a must-visit destination for tourists visiting Ruisui. If you have the chance to visit this place, apart from capturing memories with family and friends, you might also try stepping on both sides of the Tropic of Cancer marker to experience the joy of crossing into two distinct monsoon climates. (To the south of the Tropic of Cancer is the tropical monsoon climate, while to the north lies the subtropical monsoon climate.)
Among the 24 solar terms, "summer solstice" marks the day with the longest daylight in Taiwan and the day when the sun reaches its northernmost point at the Tropic of Cancer. From this day onward, the sun no longer moves further north but gradually returns to the southern hemisphere, reaching the Tropic of Capricorn on the winter solstice.
Due to the angle of sunlight, on the summer solstice at noon, the sun shines directly overhead the Tropic of Cancer, creating the astronomical phenomenon of "a planted pole casting no shadow." Every year on June 22, the summer solstice, we warmly invite you to join us in experiencing this remarkable event!