Combine equal parts honey and hot water (e.g., 1/4 cup honey + 1/4 cup hot water). Stir until fully dissolved and cool to room temperature. (Use 0.5 oz for one cocktail; reserve remainder for additional servings.)

Chill a highball or Collins glass in the freezer for 5–10 minutes, or fill with ice while assembling to cool. Juice the orange, lemon, and grapefruit fresh. Measure spirits and liqueurs.

Build (shake)

Add 1 cup fresh orange juice, 2 tablespoons fresh lemon juice, and 2 tablespoons grapefruit juice to a cocktail shaker. This bright citrus base provides the 'sunny' foundation.

Pour in 2 oz light rum, 1 oz Aperol, and 0.5 oz Cointreau. The rum gives body, Aperol lends a gentle bitter-sweet orange character, and Cointreau heightens orange aromatics.

Add 0.5 oz honey syrup and 2 dashes orange bitters to balance acidity and amplify citrus notes.

Fill the shaker with ice (enough to chill thoroughly), secure the lid, and shake vigorously for 12–15 seconds until the shaker feels cold to the touch and the mixture is well aerated.

Assemble & Finish

Remove the chilled glass from freezer or discard the ice used to chill. Fill the glass with fresh ice to about 3/4 full.

Double-strain the shaken mixture into the prepared glass over the fresh ice to remove pulp and small ice shards; this keeps the texture silky while preserving bright flavor.

Top with 2 oz chilled sparkling water to add lift and a sunny effervescence. Gently stir once with a bar spoon to integrate without flattening the bubbles.

Garnish with an orange wheel on the rim and a grapefruit twist over the top to add aromatic oils. Optionally express the grapefruit twist over the drink (pinch it over the surface) before dropping it in.

Serve immediately with a short straw. Sip, enjoy the bright citrus, gentle Aperol bitterness, and honey-smooth finish—like walking on the sun.