How to get to Pulau Ubin?
Step 1: Go to Changi Point Ferry Terminal
Changi Point Ferry Terminal is at Changi Village on Google maps
Address: 51 Lorong Bekukong S(499172)
Buses: 2, 9, 19, 29, 89, 109
Step 2: Take a bumboat to Pulau Ubin Cost of the bumboat: $3/person. Maximum 12 passengers. Additional $2 per bicycle. More details here.
Step 3: Join the fun at Pulau Ubin!
Here's more about what you can do on Pulau Ubin any day.
Here's a slideshow of how to get to Pulau Ubin