Super Mario Sunshine/Gelato Beach blue coins

Visible (x?)

Sea floor (x2)

There are two blue coins sitting on the sea floor. First go to the small island with three palm trees that's behind you when you start. Climb the middle and, while facing out to see, look down and to the left so spot a coin. Now go to the large, teardrop shaped peninsula and start swimming out to sea. When the water starts to get deep, dive and look around to find the other blue coin. It's difficult to be specific because there are no nearby landmarks, but the water is very clear and there is little in the way of clutter, so you should be able to see the coins easily even if you're not very close. Do not look for these coins in episodes 3 or 5 as they won't be there. Available episodes 1, 2, 4, 6, 7, 8.

1. On the beach, spray the sand until a brown marking appears. Spray it full for a Blue Coin.
2. Same as Coin 1, except in a different location.
3. Same as Coins 1 and 2, except in a different location.
4. Same as Coins 1, 2, and 3, except in a different location, and cannot be collected in Episode 1.
5. In Episodes 1, 2, or 4, there are a bunch of blue Cataquacks on the beach. Spray the lone red one, then jump on it's belly for a Blue Coin.
6. On the right side of the beach, spray the corresponding triangle Graffiti. A Blue Coin will pop out near another triangle.
7. Same as Coin 6.
8. On the center of the ceiling in the Sand Cabana.
9. At the start of the level, turn the camera 180 degrees and head south to a small island with a swing. Spray some water to make the swing move, and collect a Blue Coin.
10. Still on the island with the swing? Run up the palm tree with the swing to find another Blue Coin.
11. Go far off the shore of the beach and dive underwater for a Blue Coin. (Sea floor)
12. Swim into the middle of nowhere to find another Blue Coin. (Sea floor)
13. From Blue Coin 13, swim a little towards coral reef to find a school of blue fish. Following them is a Blue Coin.
14. Same as Coin 13, expect in a different location.
15. Swim under the pier holding the Surf Cabana, then swim around to find a Blue Coin.
16. Spray the graffiti on the cliff next to the Sand Cabana for a Blue Coin.
17. You'll find a Blue Coin between two walls up a hill next to the Surf Cabana.
18. Found on a cloud in the Sand Bird area of Episode 4.
19. Same as Coin 18.
20. Same as Coins 18 and 19.
21. Same as Coins 18, 19, and 20.
22. In Episode 6, spray the dune bud under the spongy graffiti to collect a Blue Coin. Yoshi is required to get rid of the spongy graffiti.
23. Spray the blue bird on the tightrope that lies atop the top of the mountain for a Blue Coin.
24. Same as Coin 23, expect in a different location.
25. Floating way high above the hut to the left of the beach. The Rocket Nozzle is required.
26. Walk across the tightrope next to the cliff area to find a Blue Coin.
27. Go up on the highest tightrope in this area to find another Blue Coin.
28. Grab a random fruit, then drop it into the juicer above the Surf Cabana for a Blue Coin.
29. In Episode 6, spray down the hive and gobble up all the bees for a Blue Coin. Yoshi is required.
30. In Episode 5, 6, 7, or 8, spray the blue Cataquack resting on top of a tree, then bounce on it for a Blue Coin.