In 1958, Nicol visited the
Arctic Circle to research
eider ducks. He became a Canadian citizen. By the early 1960s, he was studying
Shotokan karate-Do at the headquarters of the
Japan Karate Association (JKA) and studied Japanese and fisheries at
Nihon University. He spent 1967 to 1969 as a
game warden in
Ethiopia, setting up the new
Semien Mountains National Park. He returned to Japan, writing a book about his Ethiopian experiences entitled
From the Roof of Africa (1971). After he took up residence in Japan, Nicol focused on writing books and other literary works. In 1980, he won the Japan Broadcasting Writer's Award for a television drama written in Japanese. He continued to be an active
environmentalist and lecture about the environment, addressing issues such as
deforestation and the preservation of natural environments. He was particularly interested in restoring Japan's vast woodlands. The C. W. Nicol Afan Woodland in Kurohime,
Shinanomachi, Nagano Prefecture, was established in 1986. Nicol became a Japanese citizen (and thus lost his Canadian and British citizenship), which he wrote about in . He wrote both fiction and non-fiction books, in both Japanese and in English. His subjects included
whaling (for which he went on a trip on a whaling vessel), the environment, martial arts and children's fiction. His books have been translated between English and Japanese, as well as into French, Italian, German,
Mongolian, Korean and Chinese. In 2005, he was awarded an
Order of the British Empire. Nicol was the chairman of the Afan Woodland Trust. He was diagnosed with cancer in 2016, and died in 2020 at age 79. ==Selected works==