diff --git a/src/OceanSeaIceModels/CrossRealmFluxes/ocean_sea_ice_surface_fluxes.jl b/src/OceanSeaIceModels/CrossRealmFluxes/ocean_sea_ice_surface_fluxes.jl
index 3d8fdb3a..e6d856f1 100644
--- a/src/OceanSeaIceModels/CrossRealmFluxes/ocean_sea_ice_surface_fluxes.jl
+++ b/src/OceanSeaIceModels/CrossRealmFluxes/ocean_sea_ice_surface_fluxes.jl
@@ -56,6 +56,13 @@ const celsius_to_kelvin = 273.15
 Base.summary(crf::OceanSeaIceSurfaceFluxes) = "OceanSeaIceSurfaceFluxes"
 Base.show(io::IO, crf::OceanSeaIceSurfaceFluxes) = print(io, summary(crf))
 
+function Base.show(io::IO, crf::OceanSeaIceSurfaceFluxes)
+    print(io, summary(crf), "\n")
+    print(io, "├── radiation: ", summary(crf.radiation), "\n")
+    print(io, "└── turbulent coefficients: ", summary(crf.turbulent), "\n")
+    return nothing
+end
+
 const SeaIceSimulation = Simulation{<:SeaIceModel}
 
 function OceanSeaIceSurfaceFluxes(ocean, sea_ice=nothing;
diff --git a/src/OceanSeaIceModels/ocean_sea_ice_model.jl b/src/OceanSeaIceModels/ocean_sea_ice_model.jl
index f41bb304..efc2ebe7 100644
--- a/src/OceanSeaIceModels/ocean_sea_ice_model.jl
+++ b/src/OceanSeaIceModels/ocean_sea_ice_model.jl
@@ -7,6 +7,7 @@ using SeawaterPolynomials: TEOS10EquationOfState
 
 # Simulations interface
 import Oceananigans: fields, prognostic_fields
+import Oceananigans.Architectures: architecture
 import Oceananigans.Fields: set!
 import Oceananigans.Models: timestepper, NaNChecker, default_nan_checker
 import Oceananigans.OutputWriters: default_included_properties
@@ -15,9 +16,8 @@ import Oceananigans.TimeSteppers: time_step!, update_state!, time
 import Oceananigans.Utils: prettytime
 import Oceananigans.Models: timestepper, NaNChecker, default_nan_checker
 
-struct OceanSeaIceModel{I, A, O, F, C, G} <: AbstractModel{Nothing}
+struct OceanSeaIceModel{I, A, O, F, C} <: AbstractModel{Nothing}
     clock :: C
-    grid :: G # TODO: make it so Oceananigans.Simulation does not require this
     atmosphere :: A
     sea_ice :: I
     ocean :: O
@@ -27,9 +27,8 @@ end
 const OSIM = OceanSeaIceModel
 
 function Base.summary(model::OSIM)
-    A = nameof(typeof(architecture(model.grid)))
-    G = nameof(typeof(model.grid))
-    return string("OceanSeaIceModel{$A, $G}",
+    A = nameof(typeof(architecture(model)))
+    return string("OceanSeaIceModel{$A}",
                   "(time = ", prettytime(model.clock.time), ", iteration = ", model.clock.iteration, ")")
 end
 
@@ -37,10 +36,14 @@ function Base.show(io::IO, cm::OSIM)
     print(io, summary(cm), "\n")
     print(io, "├── ocean: ", summary(cm.ocean.model), "\n")
     print(io, "├── atmosphere: ", summary(cm.atmosphere), "\n")
-    print(io, "└── sea_ice: ", summary(cm.sea_ice), "\n")
+    print(io, "├── sea_ice: ", summary(cm.sea_ice), "\n")
+    print(io, "└── fluxes: ", summary(cm.fluxes))
     return nothing
 end
 
+# Assumption: We have an ocean!
+architecture(model::OSIM) = architecture(model.ocean)
+
 prettytime(model::OSIM)             = prettytime(model.clock.time)
 iteration(model::OSIM)              = model.clock.iteration
 timestepper(::OSIM)                 = nothing
@@ -98,7 +101,6 @@ function OceanSeaIceModel(ocean, sea_ice=FreezingLimitedOceanTemperature();
                                       radiation)
 
     ocean_sea_ice_model = OceanSeaIceModel(clock,
-                                           ocean.model.grid,
                                            atmosphere,
                                            sea_ice,
                                            ocean,