Formal:
* E makemake ana mākou e noho ma laila. (We wish we were living there.)
* E makemake ana mākou e hele ma laila. (We wish we were going there.)
Informal:
* Aloha wale no mākou i laila. (We're sending aloha to you there.)
* Auē, e pono iā mākou ke hele i laila. (Oh, we should go there.)
More Literal:
* E makemake ana mākou e noho ma laila i kēia manawa. (We wish we were there now.)
You can also use a phrase that emphasizes your longing for the place:
* E ʻike ana mākou i ka ʻoiaʻiʻo o laila. (We miss the feeling of being there.)
Remember that Hawaiian language is often nuanced and the best way to express your meaning will depend on the context and your relationship with the person you are speaking to.