Where land meets water is one of the richest ecotones around —
as introduced in section 1.2 — bringing together species that
need consistent moisture with the usual range of upland plants
just a short distance back from the waterline.

As covered in section 5.2 and 5.3, sea buckthorn specifically
favours coastal shoreline conditions — sandy or rocky ground,
open exposure to wind. Coastal shorelines are worth checking
for this particular plant if you haven't found it elsewhere.

Riverbanks that flood regularly can carry contamination from
further upstream — agricultural runoff, urban drainage, or
industrial discharge picked up well before the water reaches you.
As covered in section 2.5, this is worth considering even when
the bank itself looks clean and untouched.

Riverbanks and shorelines often have soft, undercut, or
unexpectedly steep ground near the waterline. Move carefully,
especially after rain, and keep the safety basics from section 1.3
in mind — this is a place where a moment of inattention
has higher consequences than most other foraging ground.