You can enjoy magnificent civil twilight at Saikazai, Wakayama City. Saikazaki is located in the south-western part of Wakayama City. You can reach there by local bus or car easily. See more information about Saikazaki;http://www.wak-guide.com/2017/12/25/saikazaki/
＊Civil Twilight happens for a certain period (most commonly 20-30 minutes) before sunrise and after sunset.