Tourists often soak themselves in the clean green water of the lake in the early morning hours, before climbing up Than Lan Mountain to enjoy the panoramic view of Ha Noi's urban area in the glow of dawn.

Our host Nguyen Quoc An suggested that Co Island in the centre of the lake should be our afternoon spot. We reached the island after a half-hour boat ride. Although tourists have frightened away most of the storks, smaller birds still chatter above our heads and call to each other to come home. The site seems poetic and peaceful at sunset.

We gather around a camp-fire, eating, dancing and singing together. It's really unforgettable.

"Tourists flock to the site during the summer months to escape the heat further south," An said. "Couples or adventurers seeking solitude are the most common visitors during the rest of the year."

Intrepid cyclists and off-road drivers can travel the 15km from the lake to Nhe Mountain Pass where they can enjoy a spectacular sight. From there, the footpath is clear along Lanh Stream up to Doi Cave.

Near the cave, the current becomes strong and the path hard to access due to large rocks. An easier way across the pine hills has been put in place to help tourists reach the cave without slipping and falling.

True to its name, Doi Cave is home to many bats. After a challenging trek to the cave, tourists can relax by swimming at a small pond beside the cave's entrance. It's absolutely safe since the water does not rise above chest level, even during the rainy season.

My friend was finally satisfied with her collection of wedding photos. As for me, I had a meaningful and interesting trip.

It was so easy to have a wonderful and enjoyable weekend that I'll definitely go back. And who knows, maybe I'll be taking wedding photos myself there soon.