• There are a few mistakes I wish I'd avoided before and during my family's trip to South Korea.
• I wish I had planned more hikes, purchased a transit card sooner, and spent more time outside Seoul.
• Looking back, I wish I'd taken more time to learn about local history and music.

When I was planning my family's summer trip to Japan, a stop in South Korea wasn't originally part of the itinerary.

However, when I found a great deal on premium-economy tickets to Tokyo with a layover in Seoul, I decided to extend our stay in South Korea's capital and spend five days exploring the city.

My children and I ended up loving South Korea, but our trip probably would have been better if I'd avoided these five mistakes.

Seoul is an energetic, bustling city. Before the trip, I had assumed we'd spend most of our time visiting urban attractions and learning more about the flashy local Gangnam Style.

However, the mountains and natural beauty in Seoul made a bigger impression on me than anything else in the city.

By sheer luck, I'd booked a stay at a hotel right by Namsan Park, a massive forest in the mountains inside city limits. My family took two long, unplanned hikes in the park — and they turned out to be some of the best parts of the trip.

Although I'm glad we stumbled upon this urban oasis, I wish I had been more intentional about planning to explore more natural attractions in and around Seoul during our visit.

During the trip, my family explored Seoul's ancient palaces and steeped ourselves in K-pop culture. We walked laps around Seoul's trendy Myeong-dong neighborhood, eating Korean street food, hunting for K-beauty finds.

We left Seoul twice for day trips to the Demilitarized Zone (DMZ) between North and South Korea and to visit K-drama filming locations.

Since South Korea wasn't our final destination, I thought five days would be enough to get a feel for the country.

It certainly felt like enough time to explore Seoul, and I loved my time in South Korea — but I left wishing I had more time to explore the country beyond its capital.

For example, I would've loved to visit the volcanic Jeju Island or the beaches and mountains in Busan.

When I travel, I usually make it a point to learn more about the place I'm visiting since doing so always enriches my experiences.

However, once I landed in Seoul, I realized how little I really knew.

For example, I wish I'd taken more time to learn about the Japanese occupation of Korea and the Korean War. There are echoes of these events everywhere, and families in Korea remain divided between the North and South.

I also wish I'd become more familiar with popular local bands and listened to more K-pop before I landed. This music is a vital part of Korean culture, and ads with K-pop bands and signs wishing a K-pop star a happy birthday were all over Seoul during my visit.

It would've been cool to understand and appreciate these references … and maybe even sing along to some local hits.

Convenience stores are ubiquitous in Seoul, and the ones we encountered were nothing like the ones back home, which often feel like a last resort for a grab-and-go bite.

Here, convenience stores are staples for a reason. I was impressed by the wide variety of affordable meals, snacks, and beverages on offer in these stores — and by the fact that many of them had seating areas.

By the end of my time in South Korea, I had grown accustomed to eating quick, low-cost, delicious (and sometimes even healthy) meals at a table inside a convenience store with my kids.

Doing something like this is nearly unheard of in the United States, and I wish I had embraced this quintessentially Korean habit much earlier. That way, we could've saved some money on food and efficiently tried even more local favorites.

For most visitors, Seoul's extensive public-transportation system is the best way to get around the city. However, using it came with some unexpected challenges.

On my first full day in Seoul, I wanted to take the bus. However, I found that I had no way to pay since physical transit cards aren't sold at bus stops and buses don't accept cash or credit cards.

I got where I wanted to go by taking an Uber instead. Paying a few extra bucks wasn't the end of the world, but I love taking public transportation when I travel, and wish I'd been better prepared.

Even though I was exhausted when I landed in Seoul, I should've taken a few minutes to buy a transit card before leaving the airport to make using public transportation easier.

After I picked one up partway through my trip, getting around the city was easy and affordable. (The card I purchased is "Squid Game"-themed, which also makes it a cool souvenir.)