How do I film a video without my family finding out?

So I'm a small YouTuber
And currently I am on vacation with my family at the beach
And I haven't posted a video in 3 days and I really want to post one again
But how do I shoot this video without saying giving away the fact that I have a YouTube channel :(

BigBadSteve2016-12-20T12:15:27Z

In some places it's illegal to shoot video at the beach. And you'd be showing no regard for your family if you shot it without telling them. Not everyone wants to appear publicly on the internet in a swimsuit. Ask them *all* first, or don't do it.

Anonymous2016-12-20T12:31:56Z

Tell them all you are are a cam-girl on myfreecams and that you have to earn some money for crack

chrisjbsc2016-12-20T12:44:49Z

You can't. Just posting here tells them what you are doing :-)

2016-12-20T19:58:49Z

is it BAD to have a YouTube channel?
just exactly WHAT are you posting...?
honesty is the best policy...