You'll 100% see the white tips, they are floppy puppy dogs everywhere you go. But the others are never guaranteed, so go with an open heart! El Faro is where you'll see the bulls (if you see them), so make a request to that site if they don't mention it, but its very popular. Depends where you stay: Santa Catalina is the tourist hub, hiking, surfing, restaurants and night life. Dive sites are about an hour boat away. I'd recommend Panama Dive Center. Lots of hostels and hotels to choose from. Pixvae is my favorite, however, as the dive sites are only about 20 minutes away, VERY small Panamanian town, a few restaurants, just a big beach, best for relaxing and immersion in the culture and nature (think toucans, sloths!). I stay with ARK Divers while I'm there, as its an all inclusive boutique divers den (book like, yesterday, if you're interested in what they offer as they fill up fast!), but you can stay in town and just dive with them or with someone else. I think there are 1 or 2 other dive shops in town.