Aliexpress
Click here… to search for JJRC H36F Terzetto RC Boat RTR on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (23.89 USD): BGdcfd93
Coupon (25.22 USD): BGRCCar5
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGRCH36F, BGHONEY2110, BG20H36F, BGPLH36F, tRaDetRaCKeR, 8wEbgaInS5, BGJUNEGSG9, BG00c906, Cuponation9, 9OFFSUMMER, BGMatt2022, BG5RCCar
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for JJRC H36F Terzetto RC Boat RTR is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).