Here is a list of some of my favorite things on Kauai:
Breakfast:
NoKa Grill (Yum!) -- I share the parking lot with them!
Lilikoi's (Lihue)
Olympic Cafe (Kapa`a)
Tip Top Cafe (Lihue)
Daddy O's (Lihue)
Keoki's Paradise (Poipu, I think breakfast is weekends only)
Kalaheo Cafe (Kalaheo)
Lunch or Dinner
NoKa Grill (Lihue, share the parking lot with them- breakfast and lunch only)
Rob's Good Times Grill (Lihue)
Duke's (Lihue, right behind my shop)
HukiLau Lanai (Near Coconut Marketplace, our favorite!)
Bubba Burgers (Poipu and Kapa`a)
Savage Shrimp (Poipu)
Keoki's Paradise (Poipu)
Olympic Cafe (Kapa`a)
Chicken in a Barrel (Waimea, Kapa'a, Hanalei)
Brenneke's (Poipu)
Golf
Hokuala
Puakea
Poipu Bay
Wailua (County Course -ranked #30 best in nation Municipal by USGA)
Kiahuna
Makai
Kukuiolono
Boating / Sailing Trips
Holo Holo Charters
Blue Dolphin
Kauai Sea Tours
Capt. Andy's
Makana Charters
Beaches:
Kalapaki
Po`ipu
Salt Pond
Brenneke's (for boogie boarding)
Hanalei (Fantastic sunsets in Summer)
Lumahai (for relaxing in the summer, not recommended in winter)
Polihale (better have a 4WD to get there)
Ke`e (Permit Required)
Kealia
Anini
Snorkeling locations:
Lawai Beach - For the experienced snorkeler (Spring, Fall and Winter)
Ke`e Beach (Permit Required)
Poi`pu Beach
Lydgate Beach Park (fantasic for families or beginners)
Tunnels Beach - For the experienced snorkeler -Spring, Summer, and Fall)
Lehua Rock (Available through Holo Holo Charters and Blue Dolphin)
Salt Pond Beach Park
Anini Beach (Honu, or Sea Turtles)