Licca K.
Yelp
If you enjoy historical sites, this one is definitely a fun one. Plus, you're in Naha.. so eat it up.
Shurijo isn't entirely a ruin: A majority of it has been reconstructed, but it gives a really good feel into what might have been seen through someone's eyes hundreds of years in the past, and you can't beat the view. However, there are ruins here of the original castle which you can spot through a shaft below the reconstruction. I found it to be an interesting way to protect the ruins. As it seems the area is maintained with limited access.
It's 820円 per adult, and high school students get discounts (620円) while elementary kids get additional discounts (320円) with 6 and under being free. If you're a large group (20+), there is a significant discount, as well, per each bracket.
The first part of the park and around the castle grounds is actually free. So you can venture around all you want.. grab a stamp map and maybe pick up some of the check points around the site. However, the museum and castle interior as well as the iconic courtyard view of the castle is a paid area. The ticket booths are self-serve, but there are also attendants.
Near the entrance there is a stand where you can also dress in historical clothing and pose in front of Shureimon gate. If you happen to miss your chance at a photo opportunity in front of the castle before entering the exhibit, you'll get at least 3 more chances as it enters and exits into the courtyard.
Once you get to the interior of the castle, be prepared to take off your shoes. Plastic bags are provided for carrying them, though, and if you happen to have a backpack on you, it makes stuffing them away pretty easy. Generally, the place is semi-crowded. The day we went it was moderate, and we could easily get photos in front of the castle, however, later on it got fairly packed. Coming earlier in the day might be something to consider if you want to get lots of shots without the crowd involved.
One of my favorite things about the visit was probably the stamp maps provided at the info desk. They kinda drag you through the castle as a semi-tour guide and as an interactive aspect instead of simply aimlessly wandering and photo scouting. Not all points are easily counted for; you'll have to really venture out of your way to get some, but it takes you deep into the little parts and allows you to explore while giving you a dose of history. Roughly, walking the park takes a few hours. It's a lot bigger than perceived. Sadly, I wasn't able to complete my map as we were just hitting it before heading to the airport for a drop off then off to exploring more of Naha.
Food options on site are scarce outside of snacks. Toward the end of the visit there are a few drink machines and a souvenir shop.