yes plenty of places to get drinks, snacks, ice cream etc

yes I think not bad but maybe you can't enjoy flowers

if you choose to travel by bus, get those hotel nearby terminal station, its quite far to city terminal, take taxi instead. I don't think so, unless you choose a huge tourist place (like seongsan) flooded with china tourist bus oh yes..you might get one...or you can walk out to the main road will be much easier to get a taxi. for the others place (like samburi)most likely those taxi driver is already booked by someone else. so, depends...Eco Land Theme Park located OPP Stone Park yes, there's a daily tourist bus & local bus (by number) from jeju airport travel around tourist spot. OR get on bus at city terminal station. but it will be slow, and most likely you might end up one or two stop sightseeing only. there's some place you might not easy to reach by bus, bear in mind. their bus number is different from one another. I have experience a day trip by local bus instead of tourist bus. (to save money) it's end up quite mess up. lol for example, you might get on 100 routes bus to seongsan, to get back home it will be in another bus number. what if you wan to travel from seongsan to another place, it could be only restricted by bus routes unless you know how to go... their bus stop will be all writen in korean language. there's only Main bus terminal will state in English. bear in mind their local bus driver they DON't Speak English. I mean local it's like 90% of them they don't speak english. there's alot hidden jem that only local driver will know, i spend a day trip by taxi and another day by bus. so let say if you choose to go seongsan/seogji tourist place which is most probably pack with tourist so take bus. when the place are not so convenient to reach (google map XD) i will list it in another day by taxi. don't worry, your taxi driver will take good care of you. their service include queue for ticket with their local price list. it's end up you might save some money in ticket, and quite alot of place have been to. there's my personal jeju trip I went by bus & by taxi. so, make your choice. (sound like jigsaw lol) due to flight schedule, 1.5days by bus. (Five Day Market / Jeju Nanta / Seongsan & Seogji / Noodle Street) A day Trip by taxi, (Alive Museum / Yakchunsa Temple / Sangumburi Crater / Eco Land Theme park/ Jeju Canola Farm / Pink Cherry Blossoms hidden spot / Folk Village & Black Pork Food)