You can hire a shuttle to take you from Tijuana to Rosarito. This may be a cheaper option of you are traveling in a group. https://bajaexcursion.com/shop/one-way-transportation/tijuana-rosarito-transportation-one-way/

Additionally, the shuttle service listed below was recommended to us by the owner of the venue and our wedding planner. It takes you from the San Diego (San Ysidro) border to Rosarito Beach Hotel. From Rosarito Beach Hotel, you can Uber or taxi to your destination. Tickets for the shuttle are $35. The shuttle leaves to Rosarito daily at the following times: 10:00am, 12:00pm, 2:00pm.

https://sdtjpassport.com/#tickets

We have a registry on Amazon and are accepting contributions towards our honeymoon.