This waterfall lake is called Pego Do Inferno located in Tavira. This translates to "hell pool" which isn't very popular due to its secretive and hidden location. The meaning behind the name comes from an old myth of a carriage that fell into a lake but was never found. It was also told that "anyone who fell into it would go straight to hell".
Zhao Shao'ang (1905-1998) FALLING LEAVES BY THE WATERFALL signed SHAO'ANG twice, dated 1939, inscribed twice, with a dedication, three seals of the artist, and one collector's seal ink and colour on paper, hanging scroll 129.3 by 41 cm. 50 7/8 by 16 1/8 in. 趙少昂 霜葉飄颺百丈泉 (1905-1998) 設色紙本 立軸 一九三九年作 款識： 己卯夏六月。少昂於蟬嫣室。 紹文吾兄雅愛。己卯之秋少昂再題。 鈐印：「少昂」、「趙」、「少昂」。 藏印：「紹文過目」。 129.3 by 41 cm. 50 7/8 by 16 1/8 in.