Visiting Seoul in late May to early June is the best time to see roses, a kind of spring flowers. The Rose Gardens in Olympic Park and Seoul Grand Park hold Rose Festivals around the same time due to the same temperature. The Olympic Park is free and there is an admission fee of KRW 2,000 for the Rose Festival in Seoul Grand Park. Well, the later is much bigger in scale. Planning ahead is a bit challenging. Only the estimated/planned event dates are available on Tourism Office’s website. So you will have to check with Tourist Information desk when you arrive at Seoul. I hope that more information are available online so that we can plan ahead. That’s probably the reason why I didn’t see any foreign tourists. Luckily, I arrived the day after the Rose Festival began and picked a sunny week day to visit the park. It was not crowded and surprisingly beautiful.