Gather fresh pineapple pieces and ripe strawberries, ensuring they are washed and hulled. Chop the pineapple into bite-sized chunks and slice the strawberries.

In a blender, combine the prepared pineapple and strawberries, pouring in one can of tinned coconut milk and white rum. Blend until smooth.

Add ice cubes into the blender and blend on high for about 30 seconds or until the ice is finely crushed and the mixture is creamy.

Taste the blended mixture and adjust sweetness or rum level as desired. Blend again if adjustments are made.

Pour into chilled glasses and garnish with a slice of strawberry or pineapple on the rim.