Here are some poster slogans that I find very attractive:

1. "Explore the unknown and discover infinite possibilities!"

2. "Let the dream sail with us!"

3. "Beyond the limit, challenge yourself and create infinite possibilities!"

4. "Explore unknown areas with us and start an unforgettable journey!"

5. "Let every moment be full of surprises and create beautiful memories with us!"

6. "Break the routine, break through yourself and create a better future with us!"

7. "Light up your life with creativity and make the beautiful moment last forever!"

8. "Feel every moment with your heart, and let beautiful moments become eternal memories!"

9. "Love send warm and make the world beautiful because of us!"

10. "Change the future with actions and make your dreams come true!"