The only thing which is on this island little tricky is a public transfer or transfering around the island without a car. So if happens that is a weekend day or holiday, probably there is 2 hours interval of a bus... so it can be little complicated to get to the port on time. Bus yes, if you will use a Uber or taxi etc it's ok. After you will get to the port everything is great. The captian named like the island Kaua'i is a supernice, energic and friendly guy who has a great crew with him so do not worry, you will feel like in a cotton. Everything is safe, comfortable and smooth. You will get local information, you will se exactly what you expect and even more when whale season it's wonderful. Waves were little more bigger so sea sickness is on place : but do not worry, the crew is really professional so you will make it after all. Food is really good even for vegans as we are and drinks all the time since arriving. No problem at all and really recommend it! We enjoyed it 100 and it was one of things which made our Hawaii-Kaua'i vacation fabulous!