Miranda Lee: This spa has an outdoor pool - so don't forget to bring your swim suit! The restaurant on the first floor has a delicious dish called Basak Bulgogi.
Daniel L.: Escape the crazy market outside for some peace and relaxation with a friend inside this beautifully decorated cafe. Get the chocolate shaved ice sundae - you won't regret it!
Russell Hirschorn: Nice walk along the river with different artistic features along the way. On hot days head under the bridges to hang with the people.
William Kan: Every time I come to Seoul I visit here at least once for their waffle. Huge portion, enough for 2 or you can order the smaller ones like the one in the pic here.
Simple Discoveries: Spectacular & expansive palace grounds. Check times for the free English tours and consider getting the 5-palace pass if you have time to visit all palaces in Seoul (it took us ~3 days).
Katrina: Weather perfect for Budae Jjigae. Got the original at ₩7,000/person + 2 ramen at ₩1,000each. The soup was awesome. Their spice mix was so tasty and just spicy enough. Cheap filling meal! Yummy.