In Singapore for a week

Hello! I'm visiting Singapore for the first time and would love to use this chance to explore the city and around. Not bothered with shopping, but am looking forward to checking out the Botanic gardens, Chinatown, Seafood paradise (though not much info found), etc. Would appreciate recommendations on museums, authentic corners and areas, as well as places to eat.

If anybody fancies anything from London, feel free to drop an email - I have saturday morning free, will be happy to grab smth for you :)

Thanks for your recommendations!

ZZ