Do you really want to take the boat ride every time you head there? Does it take to long to wait for the boat and actually get there? Well then this is for you!
What would you do if you were able to actually walk to talking island or main land? You would use it to the best extent!
If you are going to Main Land from Talking Island go to town and buy an escape scroll(buy some potions ONLY if you are a fighter and you think you actually need it). Now to the northern part of the island and jump off. When in the water walk towards Gludin harbor. When you arrive at a drop off jump down and you will be able to breathe. Now keep running towards Gludin Harbor until you feel it is close enough to use the escape scroll and POOF

you are there.
If you are going to Talking Island from Main Land go to the village and buy an escape scroll from the magic shop(potions if fighter). Then run to the end of Gludin harbor and jump off. Run to the drop off and then jump down from there. Once again you will be able to breathe. Run towards Talking Island until you feel you are close enough to use the Escape Scroll and POOF

you are there.
This is a great way to go to Talking Island from Main Land and to Main Land from Talking Island. The cost for this tatic is only 600-800 adena! Way cheaper than the silly old boat. This is also a faster way to travel.
Good luck and HAVE FUN!!