If you don't want to waste time on public transport, taxi is the way to go. We did our tour using taxi to commute between sightseeing sites. It saves so much time and the taxi are not not expensive. My guess is that the taxi fare from Busan Port to Gamcheon CV will be less than USD 20. You can use one of the transport app to check the estimated taxi fare.

Let me tell you how to get there. Let say you're at Busan station. First you should take a subway to Tosung station, then getting off at the station and walk to the hospital of Busan university. You will see the bus No. 1-1, 2, 2-2. If you take one of those buses, you can get to Gamcheon Culture Village. Please be aware that you should get off at bus stop, Gamcheon Culture Village or the elementary school of Gamcheon, in Korean, 감천문화마을 or 감천초등학교 respectively. Hope it helps you.

Well you could bring stroller with you but the place you can visit may be limited as there are many stairs to explore. Going with kids need more careful as most of the stairs doesn't have handle. Most of the subway have storage locker from small to big with different price. Visit this website english.visitkorea.or.kr/enu/SH/whereToShop/whereToShop.jsp?action=about&cid=996331

If you alone, better take bus from the nearest metro. If you with your family, from the nearest metro take the taxi to Gamcheon To Gamcheon take metro line 1 at Toseong Station (exit 6) transfer to Saha-gu Town Bus 1-1, Seo-gu Town Bus 2, or 2-2 - get off at Gamcheon culture village. Gamcheon.or.kr

I think they open around 8 or 9... maybe earlier but they close down at 6PM out of rrspect for the residents living in Gamcheon Village

There is a very good app called Subway for all the metro stops and route times in South Korea. Highly recommend it. From Toseong station I recommend a taxi... will be around 5000 - 6000 won. $5-6. Then from Gamcheon Village take a taxi back to Toseong Station. It is much more convenient.

There are many shops around the entrance that rent Hanbok. You should find it easy.

09:00〜18:00だそうです。

No fees. But I recommend buying the map for 2000 won which will help you go through the path so that you can cover good points. Also it entitles you for 3 free postcards, thus covers up for the price.

Hello if you are coming from Seoul by KTX as well then you should go to Jagalchi station and then look for exit 1 - there is bus stop nearby for Seogu number for bus will be seogu 2 or seogu 2.2 they will take you to Gamcheon village. Back by them but to Nampo only. Also from Nampodong there are several buses to Taejongdae 88 and 101. All places are quite big just for one day. You can use train at Taejongdae cost if I'm correct 3000 for adult won, it will be faster and it stops at each sight and you can always use next for same ticket after. Also there are tourist information centers near each place so if you are lost they will help. And even if in Korean there is application Kakao Bus and Kakao map. kako metro is available in English. Gamcheon and Nampo are pretty close but Taejongdae could be far especially if there is traffic jams.