We start to ride from the hotel, ride on quiet coastal back roads countryside where we turn right onto a small road that leads us through farms of sweet potato, tapioca, and rice paddy fields before passing small fishing villages. There are many stops; meet locals at small markets selling fish and prawns. Enjoy a lovely ride to a big fishing village on gentle hilly back roads. Stop for a break at a floating coffee shop by the sea. Then we carry on this adventure on the countryside track to Da Dia Reef. Ganh Da Dia is a seashore area of uniformly interlocking basalt rock columns located along the coast in An Ninh Dong Commune, Tuy An District, Phu Yen. The area is about 100 meters wide and 250 meters long, with an estimated 35,000 columns of basalt rocks. The rocks are dark lava columns with roughly flat surfaces of different shapes - round, pentagon, hexagon, polygon etc. Ghenh Da Dia looks like a gigantic beehive or a pile of dinner plates, hence the name – Ghenh Da Dia by locals. These rock columns were created from volcanic eruptions millions of years ago; when the molten basalt flows met cold water, they solidified and shaped these rare polygonal formations due to thermal contraction effects. There will be selected seafood floating restaurant by the sea for lunch today. After lunch, we will ride to Chi Thanh, past many small villages, and see thatch houses, buffaloes, and cows working on farmland in the mountain area. Your afternoon ride is a challenge. We ride rolling hills to remote hamlets, passing corn farms and sugar plantations, and pedal along railways as we race with the Reunification train to Vanh Canh. We will have a transfer to Quy Nhon City in the late afternoon.