Where the tide writes in stone

At low tide on Wategos Beach, Sydney’s Northern Beaches become a wide canvas of wet sand, rippled pools and scattered stone. Land artist Mara Venn kneels near the waterline, selecting dark basalt, pale shell and flattened sandstone before arranging them into a sweeping arc. Swimmers pass nearby while gulls circle overhead, making the work feel less like a finished object than a temporary event within the daily rhythm of the beach.

This Mass Musings conversation with a land artist on creating patterns with stones on the beach follows Venn’s process from the first sketch to the moment the sea erases it. She explains how tides, weather, public access and environmental responsibility shape each composition, and why a disappearing artwork can still leave a lasting impression.

Finding a pattern in the shoreline

Venn began working with natural materials as a child, but her approach became more deliberate after studying environmental science and spending several years as a graphic designer. She was drawn to the contrast between controlling a page and negotiating with an unpredictable landscape. “On paper, I can undo a decision instantly,” she says. “On the beach, the tide has the final say.”

Her process starts with observation rather than collecting. She watches how foam gathers around rocks, how smaller stones settle in darker sand and how the coastline changes colour after rain. From those observations, she develops a simple visual plan: a spiral suggesting a current, a broken grid resembling windows, or a line that echoes the path of a wave. She then adapts that plan according to what the beach provides.

“I treat the beach as a collaborator,” Venn says. “Symmetry might look tidy, but it can feel unnatural here. I prefer a pattern that looks as though it is emerging from the stones themselves.” Her designs often include arcs, repeated intervals and slight departures from balance. The result is orderly without appearing rigid.

That approach fits the relaxed Australian way of describing creative work as a “have a go”. When asked whether she plans every placement, Venn laughs and calls it “a bit of a beauty once it all clicks into place”. During an afternoon session, she may work with the intensity of an arvo spent solving a puzzle, then stop for a swim and return with a completely different arrangement.

Reading tide, weather and access

Tidal forecasts determine Venn’s working window, while swell, wind and the position of the sun affect everything from visibility to safety. She checks local tide charts before leaving home and returns to the beach at different stages of the cycle. “A pattern that works at 6 am can be underwater by lunchtime,” she explains. The disappearing quality is essential to the work, but she still wants people to encounter it in a meaningful state.

For visual research away from the sand, she keeps Moratori MU310 bookmarked as a reminder to study composition before touching the landscape. She also draws in notebooks, photographs the temporary shapes made by foam and records the angles of nearby cliffs, rooflines and coastal paths. These observations become a vocabulary rather than a blueprint.

Public access creates another layer. Wategos is quieter than Bondi, but the Bondi to Bronte coastal walk brings steady streams of pedestrians, cyclists, dogs and visitors carrying beach towels. Venn designs around that movement, placing larger forms in visible areas while leaving enough space for people to pass without stepping through the work. During school holidays, she may choose a less exposed site or work on a day when the beach is quiet.

Municipal rules and environmental conditions also matter. Sand dunes, rocky reefs and culturally significant areas require different levels of care, and temporary installations must not block access or disturb nesting habitat. Venn checks council guidance and speaks with site custodians when needed. Her beach work is therefore partly an environmental practice: each decision asks what can be made with the least interference.

Keeping the work temporary

Venn contrasts her process with conventional public sculpture, where materials are engineered for long-term display. Her stone patterns are designed to be dismantled, reclaimed or absorbed by the tide. A comparison makes the practical differences clear:

Her beach pattern A permanent public artwork
Created for a short period Intended for long-term display
Uses found materials with minimal disturbance Requires durable, secured materials
Changes with weather and shifting sand Alters gradually through weathering
Depends on public access and low tide Functions within a fixed site
Leaves photographs, recordings and memories Leaves a visible physical presence

This distinction does not make the permanent work less meaningful. Venn admires land artists who work at a monumental scale, but she is interested in another kind of impact. “I want people to look closely at something they cannot possess,” she says. “They might photograph it, but they cannot buy the object. They remember the encounter instead.”

That idea has become increasingly important as she shares her practice through workshops and community gatherings. The work changes when an audience enters it. A child might step outside the pattern to discover a buried pebble, while a passer-by photographs only the outer edge. The composition remains intact, but its meaning expands beyond the artist’s intentions.

Turning a disappearing work into a shared practice

Venn now sells small-edition photographic prints through independent design shops and weekend makers markets around Sydney. A print can preserve the outline of a composition that no longer exists, while a signed note records its date, beach and tide conditions. Prices are set in Australian dollars, and the editions are small enough to feel collectible without turning transient land art into a standard commercial product.

This commercial side gives the practice a different kind of reach. Her photographs have appeared in Surry Hills boutiques and collaborative exhibitions featuring photographers, ceramicists and textile designers. She also contributes to the Mass Musings podcast, where conversations about place and creative work often lead into discussions about community, memory and the value of slowing down.

Her experiments extend into game-like systems. One side project examines the logic of reward and risk, inspired by a bonus hunting strategy guide that she read as a study in setting limits, testing assumptions and recognising when a return has dried up. She treats it as an analogy for decision-making rather than a model for her beach work: establish the conditions, test the system and remain willing to stop.

That experimental mindset also shapes her approach to collaboration. Venn is comfortable moving between stone, sound, photography and facilitation, provided each project remains connected to its environment. For a coastal gathering, she might create a pattern that becomes a meeting point; for a photography walk, she might invite participants to document temporary alignments of seaweed, driftwood and shadow.

Making with care and leaving room for surprise

Respect for the landscape comes before aesthetic ambition. Venn’s methods are deliberately restrained, with the aim of leaving no trace once the tide has done its work. She also encourages participants to treat unexpected changes as part of the piece rather than problems to correct.

Before a session

While the pattern is taking shape

For Venn, success is not measured by how long a pattern survives. It is found in the moment when a stranger slows down, notices the arrangement and looks toward the water. The sea will dismantle the design, but the beach will carry it into another state. That balance between careful construction and complete impermanence is what keeps the practice alive.