well i don't have this game but i now a brilliant site called Zelda dungeon just type that in and it has most of the Zelda games
go to zeldauniverse.com, they should have everything you need.
You should try a walkthrough
well...type wind waker walkthrough on your computer and click something and look at the walkthrough.
go on to ign.com then click on Zelda walkthrough
I recommend searching for a walkthrough on Google as people don't want to waste their time to type a walkthrough for one temple, then they rather type a walkthrough for the whole game game. Oh, and BTW, how come you're stuck at the first temple? If you're a beginner, I don't recommend playing this game as it is one of the hardest games of the Legend of Zelda series.
Try here: http://www.zeldadungeon.net/Zelda13-spirit-tracks-walkthrough-10.php
This will answer evrything for you: http://www.zeldadungeon.net/Zelda13-spirit-tracks-walkthrough-06.php
Well, it sounds sarcastic but, you complete the temple (duh :D) If you mean how do you complete the temple then try looking at a walk through :) Walkthrough: strategywiki.org/wiki/The_Legend_of_Zelda:_Ocarina_of_Time/Water_Temple
look at the Zelda Walkthrough.
You need to get to the water temple boss and defeat him. If you're stuck on how to get there, go to gamefaqs.com and look up the game you're stuck on. Go to the faqs and go on a walkthrough of the game.
If you look on Google, you will get to choose which walkthrough you want to use!
www.Zelda.com There is a walkthrough for all Zelda games expect twilight princess, wind waker, and phantom hourglass.