Srinagarindra general public, the foundation offers artificial limbs to the needy. In 1964, at the age of 64, she hiked to the top of Doi Inthanon, Thailand's highest peak, in Chiang Mai Province. She had been used to taking walks from Bhubing Palace, accompanied by border control police and two physicians. Soon she felt that she had covered all she could within the immediate vicinity, and yearned to conquer Doi Inthanon, which was visible from the palace windows. In those days there was no access road to the top, so the princess mother spent two nights camping out during her hike,
Doi Inthanon ecological areas regions, the park supports a range of animal species, including over 360 bird species. On the lower slopes of Doi Inthanon, near the Karen hill tribe village, Ban Sop Had, are the Wachirathan waterfalls (), where the Wachirathan (lit. "Diamond Creek") tumbles over a granite escarpment. The climate is typically tropical and fairly cool on the summit of Doi Inthanon. In winter the average temperature is 6 °C (43 °F) in January and temperatures can sometimes drop below 0 °C (32 °F). On 21 December 2017, an all-time low temperature of minus-5 °C was recorded at 06:30 at