Cook the Shrimp: Bring a pot of salted water to a boil. Add the shrimp and cook for 2-3 minutes, or until they turn pink and opaque. Drain and rinse under cold water. Pat dry and chop into bite-sized pieces.
Prepare the Filling: Mix the chopped shrimp, cilantro, cucumber, red onion, tomato, hot sauce, lime juice, pepper, and salt in a large bowl.
Prepare the Avocado Halves: Slice avocados in half, remove pits, and scoop out about 50% of the flesh. Add the flesh to the shrimp mixture.
Mix: Gently incorporate the avocado into the shrimp mixture. Adjust seasoning as desired.
Stuff the Avocado Halves: Fill each avocado half generously with the shrimp mixture.
Serve: Place stuffed avocados on a platter. Garnish with cilantro and lime wedge if desired.