diff --git a/src/geo_interface.jl b/src/geo_interface.jl
index 0ea8c6d..c7104cc 100644
--- a/src/geo_interface.jl
+++ b/src/geo_interface.jl
@@ -32,6 +32,8 @@ GeoInterface.ngeom(::AbstractPointTrait, geom::Point) = 0
 GeoInterface.ngeom(::AbstractPointTrait, geom::PreparedGeometry) = 0
 
 GI.is3d(::AbstractGeometryTrait, geom::AbstractGeometry) = hasZ(geom)
+GI.getexterior(::AbstractPolygonTrait, geom::Polygon) = exteriorRing(geom)
+GI.gethole(::AbstractPolygonTrait, geom::Polygon, n) = interiorRing(geom, n)
 
 function GeoInterface.getgeom(
     ::AbstractGeometryCollectionTrait,
@@ -41,6 +43,7 @@ function GeoInterface.getgeom(
     getGeometry(geom, i)
 end
 GeoInterface.getgeom(::MultiPointTrait, geom::MultiPoint, i) = getGeometry(geom, i)::Point
+GeoInterface.getgeom(::MultiPointTrait, geom::MultiPoint) = getGeometry(geom, i)::Point
 GeoInterface.getgeom(::MultiLineStringTrait, geom::MultiLineString, i) =
     getGeometry(geom, i)::LineString
 GeoInterface.getgeom(::MultiPolygonTrait, geom::MultiPolygon, i) =
@@ -51,14 +54,14 @@ function GeoInterface.getgeom(::AbstractGeometryTrait, geom::Union{LineString,Li
     _get_tuple_point(geom, seq, ref, i)
 end
 function GeoInterface.getgeom(::AbstractGeometryTrait, geom::Union{LineString,LinearRing})
-    n = GeoInterface.ngeom(geom)
-    seq = getCoordSeq(geom::Union{LineString, LinearRing})
+    context = get_global_context()
+    seq = getCoordSeq(geom, context)
+    n = getSize(seq, context) # Faster thatn `GI.ngeom(geom)` when we already have `seq`
     ref = Ref{Float64}()
-    return (_get_tuple_point(geom, seq, ref, i) for i in 1:n)
+    return (_get_tuple_point(geom, seq, ref, i, context) for i in 1:n)
  end
 
-function _get_tuple_point(geom, seq, ref, i)
-    context = get_global_context()
+function _get_tuple_point(geom, seq, ref, i, context = get_global_context())
     if GeoInterface.is3d(geom)
         GC.@preserve ref begin
             GEOSCoordSeq_getX_r(context, seq, i - 1, ref)