Also known as: Rioni
Racha mountain gorges, basalt walls, Utsera mineral springs (28 types), Oni-Ambrolauri valley

Whether there is a river here on your dates, and what kind of water it is.
Snowmelt-driven; high and fast Apr-Jun, dropping from mid-July
Roughly April-September; short Racha high-water window mid-May to late June (est)
May-June (snowmelt peak); offered spring to early autumn
Cold snowmelt; wetsuit/thermal advised by operators
Spring snowmelt spikes; mountain weather; Confirm flood specifics
A river changes grade with its level. These grades describe a normal flow - in flood the same run is harder, and often a different run entirely. Check the gauge before you commit.
III-IV (IV Apr-May, III Jul-Sep per GNTA); upper Utsera sections cited to V-VI
Rafting; kayaking
6-8 person rafts; kayak option (min age 18); split into Utsera-Oni and Oni-Ambrolauri legs
Rafting min age varies (kayak 18+); Jul-Sep easier, spring for advanced only
Fast strong flow with holes and stoppers in spring; basalt gorge; Confirm crux rapids
Holes, stoppers, rocks in spring; scout upper V-VI Utsera sections
Utsera-Oni (upper Racha); also Oni-Ambrolauri
Remote, low crowds in upper Racha
No specific permit cited; commercial tour fees apply
Permits and operators change - confirm before booking.
Utsera resort (1050 m) to Oni (830 m); reachable by SUV or minibus
SUV/minibus Oni-Utsera; arrange with local rafting company
Gravel-bar camping on multiday descents; Utsera/Oni/Ambrolauri guesthouses
Life vests and helmets provided; closed shoes and thermal clothing advised; limited connectivity (est)
Kutaisi, Ambrolauri, Oni; Rafting in Kutaisi; GeTUR
Cold water, spring holes/stoppers; upper Utsera extreme sections experts only
Road follows valley near Oni-Ambrolauri; remote upper gorge; Confirm rescue coverage
Professional instructor per boat; briefing before launch
This profile is desk research, compiled from public sources - not a first-hand river run report. Coordinates are approximate.