Besaid

Beach: After the initial scene, swim east to find the Moon Crest in an alcove. On the western side, near boats, find a chest with two Antidotes. Speak to the yellow-garbed people: Keepa (twice for 200 Gil), Botta (two Potions), Jassu (three Potions), and Datto (a Hi-Potion four times). Save your game and follow Wakka.

Valley: Approach the edge for scenes and enter the water. Swim south and dive near the western wall for a Phoenix Down. Swim southeast and look north of the southwestern corner of the 'elbow' for a Hi-Potion. Further north, find a chest with two Antidotes. (Note: Piranha enemies here are a last chance for Ability Spheres; powerleveling is not recommended). Follow the path to the end for a scene.

Besaid Village: After the intro scene, explore. The shop is in the southwestern tent (Item Shop open). Outside, find a Phoenix Down. In the northwestern Crusader Lodge, find lore, game mechanics info, and Al Bhed Primer II on the floor. Use the Save Sphere in the back. A narrow path on the west side leads to a ruined hut with 400 Gil, a Hi-Potion, and two Potions. Head north to the large building.

Besaid Temple: Speak to people if desired. Approach the statue of a robed man to the right of the stairs to proceed. Return to Wakka's place (east-central home) and speak to him to take a nap. Return to the Temple for scenes.

Besaid Cloister of Trials: Examine the large glyph at the back, then the one on the eastern wall. Go downstairs, examine the wall notch to get a Glyph Sphere. Place it in the door recess to open it. Take the Glyph Sphere again, follow the hall, and place it in the first recess. Continue forward to a pedestal; touch the symbols, enter the revealed chamber, and take the Besaid Sphere. Place it in the nearby pedestal. Return to the wall opened by the Glyph Sphere, find a Destruction Sphere inside. Take it back to the room where you placed the Besaid Sphere and put the Destruction Sphere in the recess. A new space opens. Follow the hallway to the far end to find a chest with the Rod of Wisdom (Magic +5%, Magic +3%, Sensor).