Choose the afternoon before choosing the venue.

Start with the activity you want: swimming, spending time in shared heated or bathing spaces, or receiving a particular treatment. Similar photographs can hide very different ways of spending an afternoon.

If you want to swim, check the swim programme.

A pool may offer lane swimming, leisure sessions or classes at different times. Toronto publishes separate drop-in swimming formats and location schedules. Check the specific programme, access requirements and current fees; the presence of water does not mean every session allows the activity you have in mind.

A small thermal pool or plunge is not a substitute for a swimming lane. Look for the activity explicitly instead of inferring it from a venue's name.

If you want a shared visit, check the format.

For a bathhouse or thermal visit, look at which areas the booking includes, how long it lasts and whether it is guided or self-directed. Ask about conversation, clothing, changing and access arrangements where those details affect your choice.

If you are going with a friend mainly to talk, find out where that is welcome. If you want quiet, check the session rather than assuming the entire venue is silent.

If you want a treatment, compare the appointment.

For a day-spa treatment, read what the appointment involves and who provides it. Check whether access to other facilities is included or separately booked. Do not assume a treatment automatically gives you the rest of the afternoon on site.

Choose the option that fits your purpose, budget and available time. You do not need the place with the longest list of facilities if only one of them is what you came for.