We're renting a beach house with my in-laws next month. It will be my husband's parents, my two brother-in-laws, and myself, husband and two small kids at the house. We are the only ones with kids in the family so far. Here are some things I'm concerned about, and I'm looking for advice if anyone has been in a similar situation.

My in-laws have already started planning activities that my kids can't go to, so I'm automatically assumed to be the one who stays at the house with them while everyone else is having fun. Example: My in-laws are arranging a reservation at a golf course, so everyone can go golfing one morning. It will literally be everyone going (my husband, BILs and in-laws), and nobody seems to acknowledge that my kids are too young to golf, so I'm stuck at the house with them for several hours. Another example is my in-laws and BILs want to go out for drinks and walking around the city at nighttime after my kids would be in bed. They always invite my husband to come along, which means I would again be stuck at the house with the kids. I don't want to tell my husband not to go, since it's his family, and he doesn't get to see his brothers a lot (they don't live near us), but it doesn't seem like much of a vacation for me.

Another thing I'm struggling with is the food situation. My MIL and I are the only women at the house, and it's just assumed we will do the cooking for everyone else. She's asked me what meals I want to cook, but my two BILs aren't offering to cook or get food while we're at the house. However, they are planning to eat what everyone else cooks. I find this unfair that they aren't contributing to the meals, but they plan to eat whatever is available. I've talked to my husband about it, but he says it doesn't bother him. He's not the one who will be cooking though.

One more thing that bothers me, which sort of goes with the first item, is whenever we go out with his family, I get stuck with taking care of the kids while all the men sit around and drink all day. I know my husband doesn't see his brothers often, and I want him to have fun, but I also don't want to do 100% of the work while he's just relaxing all day long. He's said he will help out while we're at the beach house, but I know in the past he has said this and then not been aware of how little he was actually helping.

Any advice for me on how to deal with the things I'm worrying about?