Indoor photography

Just looking for some ideas for indoor photography sessions indoors. My wedding is at teahouse and won't have access to the lovely room til our party starts so I wanted some photos around the rose garden etc. We are getting married in April so it may be like it is now quite wet. So I'm looking for some ideas for indoors. And anyone who has gone to maybe the Fairmont on a Saturday afternoon or one of the other nicer hotels maybe some ideas on how they are with wedding photography in their hallways. I see as well the marine building can be an option I know the entrance at elevators there is quite cool looking. Thanks for the help!!