Begin by slicing the English cucumbers into 1/8-inch thick rounds. Sprinkle a light dusting of salt over the slices and let them drain in a colander for about 15-20 minutes to draw out excess moisture.

In a large mixing bowl, gently combine the drained cucumber slices, diced crab (or imitation crab), and cubed avocado. Use a spatula to mix carefully to keep the avocado intact.

In a separate medium bowl, whisk together the mayonnaise, cream cheese, soy sauce, and sesame seeds until smooth. Adjust the dressing to taste.

Drizzle the creamy dressing over the cucumber mixture and gently toss to ensure even coating. Take care not to mash the avocado.

Serve immediately for the best taste. Optionally, chill briefly in the refrigerator before serving.