Is Jiaozhou Bay cross-sea tunnel fun or cross-sea bridge fun?

The cross-sea bridge is very interesting. According to the query, the hornet's nest official website shows.

1. Bridge length: The cross-sea tunnel in Jiaozhou Bay is more than 7,000 meters long, and the cross-sea part is more than 4,000 meters long. Hangzhou Bay Bridge is the longest bridge in the world, with a total length of 36 kilometers.

2. Viewing: Jiaozhou Bay Cross-sea Tunnel can only be viewed by car, with short distance and few scenic spots. Hangzhou Bay Bridge is a world-famous landscape highway, so it is fun.