
In a bowl, combine shrimp, salt, garlic powder, and pepper. Marinate for about 8 to 10 minutes.
Over high heat. heat a lightly greased grill pan until very hot. Add shrimp in a single layer and cook for about 2 to 3 minutes until color begins to change to pink. Turn and cook for another 2 to 3 minutes.
Remove from pan, cover, and chill in the refrigerator until completely cooled.
Meanwhile, combine lime juice, honey, olive oil, and salt and pepper to taste. Stir well.
In a large bowl, combine grilled shrimp, mangoes, avocados, cucumbers, and red onions.
Drizzle honey-lime dressing and gently toss to combine.