How do you say

My family are planning to spend our upcoming three-month vacation at the seashore.

..in Chinese?

我们全家计划在三个月后的假期里去海边度假。

wǒ men quán jiā jì huà zài sān gè yuè hòu de jià qī lǐ qù hǎi biān dù jià 。

How do you say "We’re planning to travel next month. Would you like to come along?" in Chinese?