Hawaii: Seared Ahi With Pineapple Salsa

We are in Hawaii! That means beautiful sunsets, lounging monk seals, and great ingredients to cook with!
We spent our first day getting settled into our condo on Poipu beach in Kauai, and headed to the grocery store, where we found some beautiful ahi steaks and fresh pineapple.  
about 2 pounds of ahi steaks (count on 1/4 - 1/3 pound per person)

1/2 fresh pineapple

1/2 cucumber, seeded 

1/2 red onion, diced, soaked for 20 minutes in cold water, and drained

juice of one lime

a few pinches of salt

To prepare the salsa:

Cut the pineapple into 1/4" dice.

Cut the cucumber into 1/4" dice.

Stir the pineapple, cucumber, and red onion together and stir in the lime juice and salt.  Adjust seasoning to taste. Let sit at room temperature so flavors can combine while you prepare the fish.

To prepare the fish:

Heat grill on high for about 10 minutes.  

Cook the steaks about 3 minutes on each side (it will be very red inside - cook a little longer if you want it more fully cooked)

Serve topped with salsa.