Thanks for replies. I really appreciate it. For now, the plan looks like will be.
1. Eat breakfast at hotel . It is complimentary

. I have found that saves us lot of time and money. One of us and one kid go to get breakfast, while other of us and other kid get ready (bath etc), then switch places. That way we are up and ready to go in hour, with our breakfast already done.
2. Pack snacks (cookies, crackers, chips, veggies-carrot, fruits, may be cakes, granola bars, etc, drinks, water etc for park.
3. Dinner, conter service dinner (without drinks is good idea as suggested above), or even get sandwitches packed in the morning and keep those in cooler box (soft). lkrasnavage suggestes eral sandwitched (I will find out what/where they are). Throw in one nice sit down dinner on propoerty for one day to make it memorable.
4. We are not fan of to much drinks any ways, but like to drink lot of water. Kids love cold water, we can use cooler for them. We both can sustain on any kind of clean water.
Now one question, will I be abllowed to take soda cans into parks or just the bottes are allowed ? (I already understand the soft cooler part. i.e. no hard coolers, which are cubersome anyways). Smaller soft ones can be put into backpack for better manageablity.
Any more suggestion tips. This all is already looking like it is maneagable in budget with one nice memorable dinner thrwon in.
Thanks in advance.