14 Anonymous In: Question-Answer Where can you explore this underground river? 14 Where can you explore this underground river? Palawan, The Philippines Ko Mak, Thailand Nusa Penida, Indonesia Apia, Samoa 1 Answer Voted Oldest Recent Random Best Answer Goto 2021-06-05T06:35:00+00:00Added an answer on June 5, 2021 at 6:35 am The correct answer is Palawan, The Philippines. 11 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Leave an answerLeave an answerCancel reply Featured image Select file Browse Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment.