Describe a typical Eddie-and-Kelly surfing session.
Vedder: He's gotten me in some pretty hectic wave situations. They've also happened to be some of the greatest moments of my life. I relish every second we have together, whether it's playing ukuleles or talking about fin design or figuring out how to capture a wave by looking at maps on the Internet or charts on a kitchen table.

What about just hanging out?
Vedder: A lot of friends or family—if you get together, you get a rack of beer and a few bottles of wine and talk about the past and you'll laugh and have a great time. With Kelly, you won't be sitting down talking about things you've done. You'll be doing things. Unforgettable stuff. There's new life being created and new memories. And we'll always end up playing music. I could sit around in Seattle with some of the greatest musicians in the world and we'll never play music, but with Kelly, it always happens. Around campfires, in the living room, whatever.
Slater: For me, that's an inspiration in itself. You know, to play with you. It's not often in life that people get to meet someone they think so highly of and then become close friends.

Sounds like a case of reciprocal hero worship.
Vedder: I think that's unspoken and you're making us feel very uncomfortable... [Laughs]
Slater: I'm actually not uncomfortable with that at all, because I've had that with Eddie since way before I knew him. It's not something I'm ashamed of.

All the shared surfing and music—is it therapy?
Vedder: For Kelly, I see music as being like a religion.
Slater: I just couldn't live without it. Literally. Playing music every day—it's like eating food. Lately, I've been doing it more than I've been surfing, by a long shot. It's my outlet for what I can't express in surfing.
Vedder: And I think surfing is kind of my religion. Kelly felt the connection to the water in our first record, and he didn't have a clue that half those songs were written in the water. That's where everything for me always comes from. When I'm spent—I've exhausted all my accounts and the interest is gone—all I have to do is get in the water for a few days, hopefully a month, and then I'm back in the black. It's absolutely a necessity for both of us: music for him, water for me.

Does that make it strange to watch each other perform professionally?
Slater: When I hear "Eddie Vedder," it's not just a person; it's this thing that people have ideas about, that they love or praise. They grew up with the music. So, yeah, it's funny to be sitting on the side of the stage watching the whole thing happen. You're seeing your friend, who has done something so important and means so much, having all those people know him at an intimate level and, at the same time, not know him at all. I guess I have that in my own world, too.
Vedder: I remember one time we were out paddling on some little waves in Hawaii and there was a dad with his seven-year-old on the front of the board. And the dad paddles up and he sees that it's Kelly and his eyes get big as saucers. He's so excited. Sometimes people ask you for more. Kelly will deliver on all ends. He's an incredible ambassador for the sport, he'll never let anybody down. He's really giving in that kind of way.

So who's got the better job?
Vedder: I've got to give it to Kelly. Because he doesn't have to—careful what I say here... Pittsburgh's great, and Cincinnati's great, but—
Slater: Leave it at that. And yeah, I would have a tough time saying anyone has a better job than I have. I get a salary to go surf around the world.
Vedder: This might be my only thing that I've got on Kelly: I can create my own schedule. The band will democratically agree on a touring schedule; when Kelly's on the tour, he has to be there.
Slater: But you don't have the most admirable hours.
Vedder: Well, yeah. I just don't sleep.

Kelly, you recently played "Rockin' in the Free World" with Pearl Jam onstage in San Diego. What was that like?
Slater: I'm going to give the moral to the story here. The moral is that everyone deserves a second chance in life. Eddie actually invited me onstage in '99 and I totally wussed out.

How did he do, Eddie?
Slater: I did pretty average.
Vedder: No, no, no. Sparks were flying. I think that honestly, with no sarcasm, it was great—he was cool and calm and collected and loud. It wasn't any kind of air-guitar display. The man can handle himself on a big rock stage.

Compare the energy of a packed house and a big wave.
Slater: The fear onstage—it probably affects me more physically. I get nervous. But the actual danger level is not really there—unless you've got a heart condition.
Vedder: With a packed house, unless you say something incredibly offensive to God or country, a crowd of 15,000 people will not kill you. I guess they could if they wanted to, but they will not all jump on you at the same time and hold you down for two minutes. That's the difference between a big crowd and a big wave. When Kelly takes me to Waimea Bay, that wave does not give a shit who I am.