No tourist visa is issued for exactly 90 days. You reach 90 by combining options — or, more simply, by starting on a Single-Entry Visit Visa C1, which already covers 60 days and extends well beyond 90. For most travellers wanting around three months, the C1 is the cleanest single route.
The C1 is usually the simplest way to comfortably exceed 90 days without a border run.
Not as a single product. You reach 90 days by extending and combining visas, or by using the C1, which extends past 90.
Start on a C1 visit visa — 60 days plus an extension comfortably covers 90, with no border run needed.