CIS 2021 or lessons learned.

Roma, this isn't just a hotel – it's a club-hotel with its own sports complex and grounds. Essentially, it's a resort.

Quote from the website: "For active recreation and sports, the Voskresenskoe club-hotel features a sports and entertainment complex where you can visit the swimming pool, infrared and Finnish saunas, gym, bowling alley, and bar.
Experienced instructors and modern equipment are available to guests.
During the summer, there are volleyball and basketball courts; in winter: a cross-country ski trail, an ice rink, and a tubing hill with a tow lift.
Winter and summer fishing on a flowing lake. A paintball field is available year-round.
Rental of summer and winter sports equipment.
Billiards, table tennis.
We also invite you to visit a traditional Russian wood-fired sauna and a Finnish sauna. Gazebos and barbecue areas are available.

And if the deadline, if we're still talking about July, you can push it back. I can understand a certain level of current high demand for May – it's probably relevant for St. Petersburg in the context of the pandemic. But for July, I would urge you to push for a final decision and a deposit for December.