This level contains several Gold Rings. To make the most of each one, stomp the first Koopa Paratroopa you see and throw its shell onto the deck of the airship. Each time you pass through a Gold Ring, the shell will both create and collect coins for the duration of the effect.
The first Star Coin is floating at Point 2. To collect it, bounce off of the Koopa Paratroopa patrolling the area.
As the airship passes by Point 3, grab the Springboard sitting on the Blocks. You’ll need the Springboard to reach the level’s secret exit, so make sure you hang on to it.
The second Star Coin is atop one of the pillars at Point 4. Use the Springboard to reach it, or bounce off the nearby Koopa Paratroopa.
The third Star Coin is floating at Point 5. To reach it, bounce off of the Springboard or one of the nearby enemies.
When you reach the Blocks at the end of the level, use the Springboard to bounce up and hit them from below. One of the Blocks contains a Beanstalk. Bounce up to the Beanstalk, then follow the path to the secret exit. After you reach the secret Goal Pole, a new path appears on the Map Screen.